Now, the reason to be interested in them, again, is not because they're frequent.

对这些障碍非常关注的原因,并不是它们很常见

耶鲁公开课 - 心理学导论课程节选

I have left out meat and fish, of course, neither of them very common in this part of the world, but meat was common enough, because there were sheep and there were goats, even when beef would have been very hard to get.

当然我没提到肉和鱼,它们在希腊都不是很常见,但相对来说肉类已经相当常见了,因为即使在牛肉都很难搞到的时候,这里还有着绵羊和山羊

耶鲁公开课 - 古希腊历史简介课程节选