You never have to take your eyes off the road.
你从来没有起飞之路你的眼睛。
You never have to deal with more than one moment at a time.
你永远不需要在同一个当下处理多件事。
The big difference is that you never have to download anything.
区别就在于你不要下载任何东西。
You will come back. And we are looking for you to come back because you are going to experience things that you have never experienced in your country."
VOA: standard.2010.03.26
You might say, this should have been obvious to someone, but it had never been written up well before.
有人可能会说,这谁都知道,但之前从未有人记录下这个概念
So, you already have a hint that methyl groups are never in the middle, they always have to be on the outside.
那么,你已经得到了一个提示,那就是甲基永远都不可能在中间,它们总是在外侧。
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