A same meaning or not problem:
They speak the Chuvash language and have some pre-Christian traditions . In addition to Chuvash , many people also use the Russian language .
They speak the Russian language and have some pre-Christian traditions.In addition to Chuvash , many also use the Chuvash language .
****
[A]: no

A same meaning or not problem:
By contrast , cold years are often associated with dry Pacific La Nina episodes .
In contrast , cold years are often associated with dry Pacific La Nina episodes .
****
[A]: yes

A same meaning or not problem:
Black Bull Bitter ( '' 3.9 % ABV '' ) was brewed and sold to commemorate the first Theakson 's pub , where the first Theakston 's beers were brewed .
Black Bull Bitter ( '' 3.9 % ABV '' ) was brewed to commemorate the Theakson 's first pub where the first Theakston 's beers were brewed and sold .
****
[A]: no

A same meaning or not problem:
Buccinum parvulum is a species of sea snail , a true gastropod mollusk in the Buccinidae family , the whelks marine .
Buccinum parvulum is a species of sea snail , a marine gastropod mollusk in the family Buccinidae , the true whelks .
****
[A]:
no