The counselors will gladly baby-sit during their free time.空闲时这些顾问也会乐意照看一下孩子。They are expected to baby-sit, run errands, and help serve at cocktail parties.要求他们做的事情有：看孩子、跑腿儿、在鸡尾酒会上帮忙招待。Could you baby - sit for us on Frid...
The acid ewolises nearly as well as the ester.此酸的烯醇化几乎象酯一样良好.Diphenyl carbonate shows a typical vinyl ester effect.碳酸二苯酯表现典型的乙烯的酯类的效应.Ester is one of the most important compounds in Organic Chemistry.酯是有机化学中最主要的化合物之一....
'Giles phoned this morning,' Mirella said with feigned indifference.“贾尔斯今早来电话了，”米雷拉装作若无其事地说。He feigned that he was ill; He shammed a headache.他假装他生病了; 他假装头痛."Giles phoned this morning," Mirella said with feigne...
The lower dislocation density in bainite is unfavourable for the aggregation and coarsening of carbides.贝氏体中位错密度较低,不利于合金碳化物的聚集粗化.He makes unfavourable comparisons between British and French cooking...他认为与法国菜相比，英国菜相形见绌。Un...