常于睡眠中突然意外死亡，原因不清。

In the sleep suddenly the accidental death, the reason is often unclear.

youdao

你常于一星期的哪一天去吉之岛购物?。

Which day do you usually go to Jusco in a week?

youdao

你常于哪里购买衣饰?。

Which district do you shop frequently?

youdao

In a stunning admission, he says, listen to this, that "while nature may intend to distinguish the free man from the slave," he says, "the opposite often results.

听听这一段，精彩的坦承谈话，他说：，“虽然自然可能倾向于,将自由人从奴隶中区别出来，但常是事与愿违。

耶鲁公开课 - 政治哲学导论课程节选