dollar terms to $1,362.7 million and 47.7% in RMB terms.
Total normal price long-term course student enrollments increased by 44% year over year, mostly driven by online, as well as Xueersi Peiyou small-class enrollments.
GAAP loss from operations was $297.2 million, compared to $41.3 million in the fourth quarter last fiscal year.
Non-GAAP operating loss was $216.9 million, compared to $8.4 million in the same year-ago period.
In the full year of fiscal 2021, net revenue gross was 37.3% in U.S. dollar terms, which is 34.1% in RMB terms.
These accounted for 61% of total net revenue, compared to 68% in the same year-ago period.
Their revenue growth rate was 43% in U.S. dollar terms and 33% in RMB terms.
Xueersi Peiyou small class, which remains our stable core business, represented 63% of total net revenue in the fourth quarter, compared to 69% in the same year-ago period.
The lower revenue contribution from Xueersi Peiyou was mostly due to the faster growth of xueersi.com online courses, which accounted for 32% of total revenue in the quarter, compared to 24% in the same period last year.
Fourth-quarter net revenue from Xueersi Peiyou small class was up by 43% in U.S. dollar terms and 33% in RMB terms.
While our normal price long-term course enrollments increased by 21% year over year.
In the fourth quarter, normal price long-term Xueersi Peiyou small-class ASP increased by 22% in U.S. dollar terms and increased by 13% in RMB terms year over year.
Revenue from the top five cities, which are Beijing, Shanghai, Guangzhou, Shenzhen, and Nanjing increased by 44% year over year in U.S. dollar terms and accounted for 55% of Xueersi Peiyou small-class business.
The other cities accounted for 45% of the Xueersi Peiyou small-class business.
dollar terms and 19% in RMB terms.
Zhikang one-on-one accounted for approximately 6% of total revenues in the fourth quarter of fiscal-year 2021, compared to 8% in the same year-ago period.
In the fourth quarter, normal price long-term Zhikang one-on-one courses ASP increased by 17% in U.S. dollar terms and 8% in RMB terms year over year.
We added eight new cities in the fourth quarter, bringing the total to 110 cities.
Of which, 40 were newly added during fiscal-year 2021.
In Q4, we added 108 new learning centers on that basis to a total of 1,098 learning centers.
We opened 119 new Peiyou small-class learning centers and closed nine, and a net of 110 Peiyou small-class learning centers.
And we open four one-on-one centers and closed one one-on-one center, ending at 93 one-on-one centers.
During the quarter, we added 677 Peiyou small-class classrooms.
In all, by the end of February 2021, we've had 1,098 learning centers in 110 cities of which 109 cities in China and one Xueersi Peiyou learning center in the United States.
Among these learning centers, 879 were Peiyou small-class and international education centers, 82 were the merged Firstleap and Mobby small classes, and 137 were Zhikang one-on-one.
First fiscal quarter revenue from xueersi.com grew by 115% in U.S. dollar terms year over year.
And 100% in RMB terms, while normal priced long-term course enrollments grew by 71% year over year to over USD 3.7 million.
In the fourth quarter, xueersi.com contributed 32% of total revenue and 53% of the total normal price long-term enrollments, compared to 24$of total revenue and 44% of total normal price long-term course enrollments in the same year-ago period respectively.
In addition, in Q4, normal-priced long-term course ASP increased by 9% in U.S. dollar terms and increased by 1% in RMB terms year over year.
Gross profit increased by 72.9% to $81.2 million from $451.8 million in the same year-ago period.
Gross margin for the third quarter increased to 57.3%, as compared to 52.7% for the same period of last year.
Selling and marketing expenses increased by 171.6% to $650.5 million from $243.2 million in the fourth quarter of the fiscal year 2020.
Non-GAAP selling and marketing expenses, which excluded share-based compensation expenses, increased by 168.4% to $635.5 million from $236.8 million in the same year-ago period.
Other income was $7.9 million for the fourth quarter of the fiscal year 2021, compared to other expenses of $4.7 million in the fourth quarter of the fiscal year 2020.
The income tax benefit was $80.5 million in the fourth quarter of the fiscal year 2021, compared to $63.6 million of income tax expense in the fourth quarter of the fiscal year 2020.
Net loss attributable to TAL was $169 million in the fourth quarter of the fiscal year 2021, compared to a net loss attributable to TAL of $90.1 million in the fourth quarter of the fiscal year 2020.
Non-GAAP net loss attributable to TAL which excluding the share-based compensation expenses was $88.7 million, compared to a non-GAAP net loss attributable to TAL of $57.2 million in the same year-ago period.
From the balance sheet as of February 28, 2021, the company had $3,243 million of cash and cash equivalents and $2,694 million of short-term investments, compared to $1,873.9 million of cash and cash equivalents and $345.4 million of short-term investments as of February 29, 2020.
As of February 28, 2021, the company's deferred revenue balance was $1,417.5 million, compared to $781 million as of February 29, 2020, 30th, representing a year-over-year increase of 81.5%, which was mainly contributed by the tuition collected in advance of part of the brief semester of Xueersi Peiyou small classes and online courses through www.
This year revenue grew by 37.3% to $4,495.8 million.
Gross profit grew by 35.6% to $2,447 million from $1,804.7 million in the fiscal year of 2020.
Gross margin for the fiscal year 2021 decreased by 70% to 54.4% as compared to 55.1% for the same period of last year.
Loss from operations was $438.2 million in the fiscal year of 202, compared to income from operations of $137.4 million in the previous year -- the prior year.
Non-GAAP loss from operations, which excluded the share-based compensation expenses was $233.3 million for the fiscal year of 2021, compared to non-GAAP income from operations of $255.4 million the fiscal year of 2020.
Net loss attributable to TAL was $116 million in the fiscal year 2021, compared to a net loss attributable to TAL of $110.2 million in the fiscal year of 2020.
Non-GAAP net income attributable to TAL which excluded the share-based compensation expenses was $98 million, compared to non-GAAP net income attributable to TAL of $7.7 million in the fiscal year 2020.
Despite all the challenges we have faced, we realize 37.3% revenue growth for the fiscal year 2021, which was in line with our long-term growth rate expectations.
Based on our current estimates, total net revenue for the first quarter of the fiscal year 2022 is expected to be between us $1,302.2 million and $1,320.5 million, representing an increase of 43% to 45% on a year-over-year basis.

Summary:
Based on our current estimates, total net revenue for the first quarter of the fiscal year 2022 is expected to be between us $1,302.2 million and $1,320.5 million, representing an increase of 43% to 45% on a year-over-year basis.