一、熟悉下列句子的翻译1. In addition to the revolution in new classes of drugs, an equally momentous revolution is taking place in drug delivery. 除药物种类的革命外，药物给药系统也在进行一场同样令人震撼的革命。2. The body can make about a trillion different antibodies, produced by shuffling and reshuffling their constituent parts.通过对构成成分的改组和再改组，机体可以产生约一万亿个不同的抗体。3. Under current law, all new drugs need proof that they are effective, as well as safe, before they can be approved for marketing.现有法律要求，所有的新药都必须具有其有效、安全的证据才能被批准上市。
