This is a sea turtle.

这是一只海龟。

If I ever meet a sea turtle, I'll ask him.

如果我见到海龟的话，我会问他的。

Look, there is a big sea turtle over there.

看，那里有一只大海龟。

This green sea turtle spends most of its life in the ocean.

这只绿海龟的大半生都是在海洋里度过的。

The green sea turtle, could only swim around in a very limited range because she only had one flipper.

这只绿海龟只能在很有限的范围里游，因为她只有一只鳍。

Before being fitted with her artificial fin, which her handlers refer to as her 'ninja suit,' Allison the green sea turtle could only swim around in tight circles because she only had one flipper.

艾莉森的饲养员把她的鳍比作“忍者服”，由于在装上人工鳍之前她只有一只鳍，所以这只绿海龟只能在很有限的范围里游。