The ability of clay minerals to catalyse decarboxylation has long been recognised.粘土矿物能催化脱羧基作用是早已认识到的问题.The results demonstrate that this catalyse has an excellent activity and selectivity this reaction.结果表明该催化剂对此合成反应具有很...
Two backup singers that want to be lead vocalists, solo stars?两位和声歌手渴望成为主唱成为独唱明星?Vocalists can perform with instrumental accompaniment, or they may perform a capella.歌唱家可以伴着乐器演唱,也可以无乐器伴奏清唱.Vocalists may also be included....
The crowd in Robinson's Coffee-House was thinning, but only by degrees.鲁宾逊咖啡屋里的人正在变少，但也只是渐少而已。The crowd in a panic fled in all directions.仓皇的人群向四面逃去.Don't crowd in on me, I will see your books one at a time.不要都...
Every visitor noticed that her effusive welcome was not sincere.所有的客人都看出来她那过分热情的欢迎是不真诚的。She was very gushing and very effusive.她非常热情奔放。He was effusive in his praise for the general.他对那位将军极尽溢美之词。He was effusive in his pra...
Lettie groped blindly for the glass.莱蒂摸索着找杯子。She groped blindly for the light switch in the dark room.她在黑暗的房间里摸索电灯开关。He groped around in the dark for his other sock.他在黑暗中到处瞎摸找另一只袜子。...
He was tallying the day's receipts.他正在清点一天的收入。We charge extra fee at 100 % of the rates of tallying fees.我们按理货收费率的100%收取附加费.We are all personnel in the specific field of tallying.我们都是专业理货人员....