给服务员、行李搬运工、导游和司机小费是惯例。It is usual to tip waiters, porters, guides and drivers.搬运工把我们那些被雨水浸透的脏兮兮的行李放上了手推车。The porter put our scruffy rain-sodden luggage on a trolley.我提着行李艰难地走着，迫切地寻找着搬运工。I struggled with my bags, desperat...
It is to be hoped that he is merely drumming up business.但愿他只是在招揽生意。the steady drumming of the rain on the tin roof雨点打在铁皮屋顶上发出的有节奏的嗒嗒声He pointed up to the roof, through which the steady drumming of rain could be heard.他向...
Water - borne polyurethane is the predominant material of membrane pressing adhesive.水性 聚氨酯是真空吸塑胶的主要成分.The water - borne polyurethane was based on polyester diol and toluene diisocyanate etc.以聚酯多元醇、甲苯二异氰酸酯为主要原料合成了 水性 聚氨酯...