高质量的教学和研究并不互斥，但它们也不是“天生一对”。

Good teaching and research are not exclusive, but they are also not automatic companions.

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竹子是最常见的材料，但它们也可以用各种各样的木材、塑料、瓷器、动物的骨头做成。

Bambo's the most common material, but they are also made of various types of wood, as well as plastic, porcelain, and animal bone.

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尽管无人机可能有害，但它们也可能非常有用。

Though drones can be harmful, they can be very helpful.

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Those are two voices that often come, in some ways, come against one another But they also come against the idea of pluralism.

这两种说法常常，会彼此相互攻击,但它们也会攻击多元主义的观点。

普林斯顿公开课 - 人性课程节选

First thing is that they're like each other in many important ways, although obviously with differences from place to place.

首先它们大体上很相似,但每个殖民地也有其独特的特点

耶鲁公开课 - 古希腊历史简介课程节选

On the other hand, there were positive effects and those were added up on the other side of the ledger.

但另一方面，也有正效应,它们被记在账目的另一侧。

耶鲁公开课 - 公正课程节选