He kept bouncing up and down like a yo-yo .他像个悠悠球似的蹦蹦跳跳。Don't talk to him, he is a real yo - yo.不要跟他说话, 他真是个摇摆不定的呆瓜.My emotions went up and down scale a yo - yo.当时我的情绪就好象悠悠轮一样忽上忽下....
Medical authorities were baffled, both as to its causes and its virulence.医疗当局对其病因及有多致命都还不甚了解。I confess it's got me baffled.我承认这把我难倒了。The question baffled me completely and I couldn't answer it.这个问题把我彻底难倒了,我答不出...
Some commercial laboratories use periodic nitrate tests as guides.许多商业性的试验室已应用定期的硝态氮分析作为指导.In the presence of ethanonitrile and glycol, anisole reacts with ammonium ceric nitrate to form o - nitroanisole.在乙腈、聚乙二醇存在下, 用苯甲...
A dishonest person is bound to meet with setbacks sooner or later.不老实的人非碰钉子不可.Anyone will help you when you meet with difficulties.你有困难时谁都会帮助你.Now I meet with fewer difficulties in my work.现在我工作中困难少些了....