He risks defeat in the referendum that he called, but which threatens to boomerang against him.

他冒着失败的风险呼吁全民投票，但这很可能会使他面临自作自受的危险。

《柯林斯英汉双解大词典》

You may know all the words on the right, but which of the following carries meaning?

你可能知道右边的所有单词，但是下面哪个有意义呢？

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New laws were passed immediately that achieved the same result of resting soil and providing flood-control measures, but which were based on the principle of soil conservation.

新的法律立即通过，达到了同样的结果，使土壤留下来和提供防洪措施，但这是基于土壤保护的原则。

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But which one? Many congressmen believed that a southern line would be best.

VOA: special.2009.04.23

Now in addition to defining literature, literary theory also asks questions obviously not unrelated but which open up the field somewhat.

除了定义文学以外，文学理论还提出一些,显然不是不相关，却开辟了新领域的问题。

耶鲁公开课 - 文学理论导论课程节选

One miscellaneous result, which we don't use very much now, but which I should mention to you is the following.

这是一个很复杂的结果,现在并不常用,但是我要提醒你们注意下面的

耶鲁公开课 - 基础物理课程节选

Obviously there is a correlation, but which is the cause and which is the result?

FORBES: Innovation and Growth: Which Comes First, the Chicken or the Egg?

Makes sense on paper, but which clubs are going to drive such a market for Pujols?

FORBES: Expect a Limited Market for Pujols

This took up about 35 minutes of our time, but which one worked better?

ENGADGET: Guide to survive a cable outage HD