答案关键看来是得细心挑选荒地，其间要有灌木丛才能达到最佳效果。

The answer seems to be to pick your cleared area carefully. For best results you need patches of shrubland in the middle of open fields.

youdao

这个女孩已经多次改动了试卷上的答案，因为她不够自信，尤其是在关键时刻。

Many a time has the girl changed her answers in the test paper because she is not confident enough of herself especially when it comes to a critical moment.

youdao

泄漏究竟是怎么造成的，这一关键问题仍未得到答案。

The key question of what caused the leak remains unanswered.

《牛津词典》

Should we conclude,therefore, that the key to the important question--namely, What matters? the answer to that question, should we conclude,is,same personality?

我们是否就该得出结论，重要问题的关键，也就是什么是最重要的，这问题的答案就是相同的人格吗？

耶鲁公开课 - 死亡课程节选

So if you know the answer and know what the fix is don't answer this.

如果知道答案,知道问题的关键所在，先不要说出来。

哈佛公开课 - 计算机科学课程节选

If we could get clear about what the answer to that metaphysical question the key to personal identity we'd at least know what we needed to find out to answer the question: ? Is this one person or two?

如果我们能知道,那个形而上问题的答案,对于人格同一性的关键,至少我们会知道,我们要知道什么来得出答案：,是同一个人还是两个人？

耶鲁公开课 - 死亡课程节选