仅仅50毫克的咖啡因就能产生药理效果。As little as 50mg of caffeine can produce pharmacological effects.凭经验估计，一杯过滤咖啡约含80毫克咖啡因。As a rule of thumb, a cup of filter coffee contains about 80mg of caffeine.每次服用大约60毫克，每天最多4次，或遵医嘱。Take approximat...
You friend Jack Turner seems to have a crush on Susan Tompkins.你的朋友杰克·特纳好像迷恋上了苏珊·汤普金斯.Plucking up courage, Mr. Tompkins decided to take advantage of the occasion.汤普金斯鼓起勇气, 准备抓住这个机会.He offered the binoculars to Mr Tompkin...
modern labour-saving devices such as washing machines and dishwashers诸如洗衣机和洗碗机之类的现代化省力设备Many cottages are a home from home, offering microwaves, dishwashers, tvs and videos.很多度假屋都像自家一样，里面有微波炉、洗碗机、电视机和录像机。Apart from the c...
And calculated the N - acetyl H acid content with the aid of diazotization analytical method.H酸用重氮法分析,从而计算出乙酰H酸的含量.We compared the response types are good at: alkylation, oxidation, reduction, diazotization, such as halo...
This tradition of guaranteeing anonymity began to develop quickly.这种担保匿名的传统便开始迅速扩展开来.The meanness of anonymity gave a shuddering obscenity to the moment.这种匿名的卑鄙行为使他一时觉得下流得让人吃不消.Our company promises to preserve the anonym...