The ankle was the most common body part to be injured.

VOA: special.2009.12.09

Does anyone have that in their brain somewhere for ready use? I don't, in fact, so it's actually okay if you don't know all your common ions, if you missed that part.

你们有谁有印象它们有什么用吗？,我当时是不知道，所以如果你们不记得,这部分也没有关系。

麻省理工公开课 - 化学原理课程节选

And it turned out that another, not quite as deadly, but still very serious disease called syphilis was also common in this part of the world at that time.

现在已知另外一种疾病,它并不完全致命但也很严重,它叫梅毒,在那时的一些地方也很常见

耶鲁公开课 - 生物医学工程探索课程节选

That's common sense. This is part of your DNA, And then their final product is an object, a b which ends up at a temperature or a warmness which is in between the hot and the cold.

这是常识，是你的一部分，它们的最终产物是一个物体，其温度或温暖程度,介于热与,冷之间。

麻省理工公开课 - 热力学与动力学课程节选

These are linguistic terms. But of course, the people who spoke them, especially in the early years, tended to be part of a relatively narrow collection of people, who intermarried with each other chiefly, and therefore developed common cultural characteristics.

这时的希腊语主要是一些语意项,不过当然,那些讲希腊语的人,特别是在早期,是一个相对小范围的人群,他们主要在族群内部通婚,由此,发展出相近的文化特征

耶鲁公开课 - 古希腊历史简介课程节选

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

One part of them is all common.

抗体中的一个部分是通用的

耶鲁公开课 - 生物医学工程探索课程节选