assail a task着手完成任务By 1000 BC waves of invaders began to assail the land.到公元前约1000年,埃及遭受到蜂拥而来的入侵者的掠夺.Then doubts and fears did assail the very strongest.那时,疑惑和恐惧的确困扰过意志最坚强的人.You ought to assail all the difficulties that ...
That was the cue for several months of intense bargaining.那意味着几个月的激烈谈判开始了。After much hard bargaining we reached an agreement.经过一番艰难的讨价还价，我们达成了协议。I'm bargaining on your help to drive us to the airport.我指望着你开车送我们到机场....
Propyl glycidyl ether ( PGE ) was obtained from propyl alcohol and epichlorohydrin by phase - transfer catalysis.以环氧氯丙烷和正丙醇为原料,通过相转移催化法合成了正丙基缩水甘油醚.The FBC ( fluorous biphase catalysis ) is a new nonaqueous immobilization...