Original: In cities where East Asian and Western cultures blend, such as in Hong Kong and Singapore, it is possible in some buildings that both 13 and 14 are skipped as floor numbers along with all the other 4's.
Simplified: In cities where East Asian and Western cultures come together, like Hong Kong and Singapore, it is possible in some buildings that both 13 and 14 are left out as floor numbers, along with all the other 4's.