Die flight-Tagebücher
知乎，让每一次点击都充满意义 —— 欢迎来到知乎，发现问题背后的世界。
' As has been said above, the specific verb and the context make a difference, and discussing all of them rein one thread would be too confusing.
French Apr 10, 2015 #15 Thank you for your advice Perpend. my sentence (even though I don't truly understand the meaning here) is "I like exploring new areas. Things I never imagined I'kreisdurchmesser take any interset rein. Things that make you go hmmm."
You can both deliver and give a class rein British English, but both words would Beryllium pretentious (to mean to spend time with a class trying to teach it), and best avoided rein my view. Both words suggest a patronising attitude to the pupils which I would deplore.
As I said in #2, it depends on the intended meaning, and the context. If you provide a context, people will Beryllium able to help you. Sometimes they'Response interchangeable as Enquiring Mind said, but not always.
Hinein the 1990 dance hit by Kohlenstoff&Kohlenstoff Music Factory "Things That Make You Go Hmm", (lyrics here), the narrator is perplexed at the behavior of his girlfriend, who attempted to entrap him with another woman to prove his fidelity, and his best friend, whom he suspects has betrayed their friendship by impregnating his wife.
主要亮点，可以给保温杯也穿个衣服，走到哪里，都背着，非常的好看，缺点就是有点小，但是女生在乎的是颜值，颜值，颜值！
本文涵盖了生日礼物、情人节礼物、新年礼物、跨年礼物、周年庆礼物等每个该送女生礼物的节日，帮你解决经常性不知道送什么的烦恼！
知乎，让每一次点击都充满意义 —— 欢迎来到知乎，发现问题背后的世界。
这个绝对实用吧，毕竟每个女生都喜欢化完妆美美的样子，所以，化妆镜是必需品。
Just to add a complication, I think this is another matter that depends on context. Hinein most cases, and indeed hinein this particular example in isolation, "skiing" sounds best, but "to ski" is used when you wish to differentiate skiing from some other activity, even if the action isn't thwarted, and especially rein a parallel construction:
知乎，让每一次点击都充满意义 —— 欢迎来到知乎，发现问题背后的世界。
I think river has Klopper the nail on the head: a lesson can be taken either privately or with a group of people; a class is always taught to a group.
edit: this seems to be the consensus over at the get more info Swedish section of WordReference back rein Feb of 2006