I never seen anybody eat so much at one time.

我没见过谁一顿饭吃这么多的。

I'm very much at one with the animal kingdom.

在动物世界里我总能获得特权。

The researchers admit that the effects may not seem like much at one meal.

研究人员指出这种效果的影响也许不明显。

Perhaps one never seems so much at one's ease as when one has to play a part.

也许一个人似乎从来没有像必须扮演一个角色时那样自在。