Polystyrene - supported N - benzyl - N - alkyl - aminopyridine was prepared through chloromethylated polystyrene treated with 4 - aminopyridine and alkylation agents.本文以聚苯乙烯氯球为原料,通过与 4- 氨基吡啶及烷基化试剂反应,制成聚苯乙烯支载N - 烷基-N-苄基氨基...
坏天气对上午那些风笛吹奏者毫不容情。The weather was unkind to those pipers who played in the morning.这群人那天上午去了松鸡猎场。The party had been to the grouse moors that morning.我今天上午努力熨完了所有的衣服。I managed to get all the ironing done this morning....
那天下午她发出了远远不止400份请柬。She had sent out well over four hundred invitations that afternoon.我们印了250份请柬。We printed two hundred and fifty invitations.他们还没收到参加婚礼的请柬。They haven't got an invite to the wedding....
I felt impelled to go on speaking.我感到不得不继续说下去。He felt impelled to investigate further.他觉得有必要作进一步调查。Faith that justice would prevail impelled us forward.正义必胜的信念激励着我们前进....
The soil is reasonably moist after the September rain.9月的雨季过后，土壤已相当湿润。Frogs produce slime to keep their skin moist.青蛙分泌出黏液来使皮肤保持湿润。Besmear face, good color of moist a person.涂面, 令人润泽好颜色.Lanolin acts as a humectant absorb...