学习数学的唯一方法就是做数学。

Your body is a battleground.

I am a very committed wife. And I should be committed too - for being married so many times.

Policy should be the compass, not the anchor, of aquaculture growth.

我们必须投资研究，使水产养殖更高效，对海洋生态系统的影响更小。

Objects have always been carried, sold, bartered, stolen, retrieved and lost. People have always given things to other people.