It also is possible, again it's just speculation, that population pressure might well be greater in the cities that did the colonizing.

再一次,只是猜测,也很有可能,这些进行殖民的城市,人口压力相对大

耶鲁公开课 - 古希腊历史简介课程节选

It's actually not impossible, but hard, and there are a number of challenges.

事实上，它并非不可能，只是很艰难，要面对很多挑战。

耶鲁公开课 - 金融市场课程节选

It's not impossible but it's pretty unlikely.

不是完全不可能,只是可能性很低

耶鲁公开课 - 生物医学工程探索课程节选

So, the fact that you are similar to your friends at Yale might just be because you are close to your friends at Yale and people who are at Yale tend to be fairly similar to one another.

所以如果你和你在耶鲁的朋友相似,可能只是因为你们很相近,在耶鲁的学生彼此之间比较相似。

耶鲁公开课 - 心理学导论课程节选