Since the cord connecting the two blocks is inextensible, the accelerations are the same.由于连接两物块的绳子无伸缩性, 因此它们的加速度相同.Power socket for connecting PW 10 , Compartment for detergent tablets , Defoamer metering.拥有清洁剂箱和除泡剂计量箱....
Haley studied her, an enigmatic smile on his face.黑利打量着她，脸上带着神秘的笑容。Haley, with visible reluctance, handed over the fifty dollars to Tom.海利很不乐意地交给汤姆五十块钱.Haley stood there in ill humor.海利站在门口怒容满面....
谢纳托罗娃女士对市场经济学有一种天生的敏感。Ms Senatorova showed an instinctive feel for market economics.该书的目的是要让经济学理论更加简单易懂。The book's aim was to make economic theory more digestible.教我们经济学的是汉弗莱小姐。The teacher who took us for economics ...