他是由海军上将精心挑选出来担任这项工作的。He was hand-picked for this job by the Admiral.他由于患轻度眼疾而不再担任队长一职。His captaincy of the team was ended by mild eye trouble.我在出版界担任高层要职。I had a very high-powered senior job in publishing....
Men and women alike have been constricted by traditional sexual roles.男性和女性同样受到传统性别角色的束缚。My throat constricted, so that I had to concentrate on breathing.我的嗓子发紧，所以我不得不把注意力集中在呼吸上。Many of the women I spoke to left because ...
She was dancing while someone substituted at the piano.她在跳舞,别人代她弹钢琴.The synthesis methods of melatonin, related tryptaminetryptamine derivatives and substituted indoles are discussed.从人工合成的角度综述了美乐托宁及有关化合物色胺、色胺衍生物及吲哚衍生物的制...