There are two main types of uses of radioactive isotopes in biochemistry.在生物化学中,放射性同位素主要有两方面的应用.Nucleon and use of radioactive isotopes to launch particle ionizing air molecules.核子中和利用放射性同位素发射粒子,使空气分子电离.More reactive are...
One of the office girls was down with the flu.一位女职员得了流感。His office was in keeping with his station and experience.他的办公室与其身份和阅历相称。He called me to his office for a man-to-man talk.他把我叫到他的办公室私下谈了谈。...
The queue for places at the school has never been longer.排队申请上这所学校的人数达到历史最高峰。Make sure you join the queue inside the bank.在银行里一定要排队。We all had to queue up for our ration books.我们都得排队领取定量配给票证薄。...
He was writing his report so attentively that he didn’t know the rice gruel in the pot had boiled over.他聚精会神地写报告,连锅里的稀饭煮溢了也不知道。He debated heating up the pot first before his friends came.他考虑在朋友们到来之前先把火锅烧热。A pot fell over...