在1,2--二亚甲基环丁烷中并不发生这种现象.This phenomenon does not occur with 1 - 2 - dimethylenecyclobutane.环丁烷主要成 “ 蝶式 ” 构象存在.Cyclobutane exists predominantly in a " butterfly " conformation.四 号 溶剂主要成分为液化丁烷.The main component in 4 # solv...
There's such pressure to be happy in Hawaii, if you're unhappy you're on a guilt trip...就好像去夏威夷就一定要开心似的，如果你不开心，你会一个劲儿地感到愧疚。Nowhere is language a more serious issue than in Hawaii...没有哪个地方像夏威夷那样，语言成了如此重要的问题...
The Koran recommends fasting as a penance before pilgrimages.《古兰经》劝告人们在朝圣前斋戒，以作为一种补赎。The transmission began with a recitation from the Koran.节目一开始是一段《古兰经》朗诵。I had learnt a portion of the Koran.我学过一点儿《古兰经》。...
Leo, will you say grace?利奥，你来做饭前祷告吧？I don't believe he would tell Leo such a thing.我不信他会告诉利奥这种事。'So you're Leo's girlfriend?' he ventured...“那么你就是列奥的女朋友了？”他大胆问道。He stared at Leo with great blear...