This is the botten line, Ms. Crofter. Is that going to be acceptable?

这是最底线，特女士。这能接受吗？

The crowd yelled when the hometown team scored a touchdown.

当们自己的队得了底线分时, 人群高声呼喊起来。

The bottom line, he said, is that altruism may rely on a basic understanding that others hae motiations and actions that may be similar to our own.

说，底线是利主义可能是基于这样的基本认识：别人有和我们自己近似的动机和行为。

That said, I think we should first lay down a solid foundation -- a base line -- of extreme homophobia, jingoism, fear of the Other, and a psychotic rapaciousness toward the natural world.

我们首先要放下成见（那是我们所谓的底线），放下那些对同性恋极度的厌恶，摒沙文主义，摒人之间的隔阂，摒对大自然疯狂的掠夺。