Williamson reaction is one important method to prepare unsymmetric ether.Williamson反应是制备不对称醚类化合物的重要方法.Brydon's team-mate Martin Williamson consolidated his lead in the National League when he won the latest round.布赖...
Brydon's team-mate Martin Williamson consolidated his lead in the National League when he won the latest round.布赖登的队友马丁·威廉森在最近一轮比赛中获胜，巩固了自己在全国联赛中的领先地位。Williamson reaction is one important method to prepare unsymmetr...
I don't know why he bothers me with this kind of rubbish.我不明白他为何用这种烂事来烦我。I'll put a flea in his ear if he bothers me once more.如果他再来打扰的话,我就要对他不客气了.She never bothers about clothes.她从不为穿着烦心....
Your behaviour will disparage the whole family.你的行为将使全家丢脸.I don't mean to disparage your achievements.我并不想贬低你的成就。With that said Hung - chien could no longer disparage him.这样一说,鸿 渐 倒没法损他了.Researchers must not unjusti...