The French were dealt another blow yesterday when Serge Viars withdrew from the squad.昨天塞尔日·维亚尔退出该队令法国人又遭遇了一记重击。It was a severe blow to Kendall's pride.这严重地打击了肯德尔的自尊心。This was a sudden and unexpected blow.这是一个突如其来的意...
At this point esch chromosome consist of a pair of chromatids and the two associated chromosomes are termed a tetrad.此时每条染色体由一对染色单体构成,这两条联合的染色体称为四分体.Microspore abortion occurred after the tetrad formation.小孢子败育发生在四分体形成以后...
He was returned to prison in 1977 for impersonating a police officer.他1977年因冒充警官而再次入狱。I ought to be arrested for impersonating an officer.我假冒警官应该被捕.The man was accused of impersonating a officer.那个男人被控冒充官员.He was returne...