某碳氢化合物已知可能是烯烃或是烷烃.A hydrocarbon was known to be either an alkene or alkane.在较高的烯烃情况下, 高能的中间物稳定作用更易出现.With the higher olefins, stabilization of the energetic intermediates occurs more easily.有时它们就难于和芳香族或烯烃的吸收峰相互区别.They ar...
“我曾经和你一样迷惑，”她意味深长地说。"I was once as bewildered as you are," she said meaningfully.他英俊漂亮，具有魔鬼般的迷惑力。He was handsome, with a devilish charm.这些指示不单令人迷惑，而且肯定会误导人。The instructions were not just confusing, they were positively m...
I think he thinks I fancy him or something.我想他以为我爱慕他或什么的。I think he made a tactical blunder by announcing it so far ahead of time.我认为他在时机远未成熟时就把这事说了出去是一种失策。I don't think this is the time to cavil at the wording of t...
金和银是容易加工的金属.Gold and silver are tractable metals.将织物的毛边与滚边未经加工的边对齐。Keep the rough edge of the fabric aligned with the raw edge of the piping.即使经过最精细加工的金属表面也不会真正平整.Even the most carefully finished metal surface is not tru...