And sexual selections give rise to a host of organisms, some of which survive and are fit and others which aren't.

性选择导致了大量有机体的产生，其中的一些有机体生存了下来,适应了竞争,而其他则遭到淘汰。

耶鲁公开课 - 心理学导论课程节选

But now, the Web is competing with it, so they're scaling down the size of the paper and trying to survive.

但是现在,网络在与它竞争,所以他们减小了版面以求生存

耶鲁公开课 - 金融市场课程节选