He's gonna take a turn on that mic.

他会接过这只麦克风。

And give me a turn on the horse, won't you?

能让我骑一下吗？

We can say: " Wow. Beards are a turn on." In this case it's a noun.

我们可以说：“哇。胡子是个亮点。”在这种情况下，它是一个名词。

While I was there, I did secretary work and also took a turn on the reception desk, to help out, and it was very enjoyable meeting people in this way to vary the routine.

当我在那里的时候，我做了秘书工作， 还轮流在接待处帮忙，以这种方式与人会面以改变常规是非常愉快的。

And thereupon the braid was forgotten. Madame Marty yielded at once, whilst Madame de Boves declined, preferring to take a turn on the ground-floor first of all. Besides, they were sure to meet again upstairs.

然后辫子就被遗忘了。马蒂夫人立即让位，而德·博维斯夫人拒绝了，她宁愿先到一楼转一圈。再说了，他们肯定还会在楼上见面的。