只有4种: 腺嘌呤 、 胸腺嘧啶 、 鸟嘌呤和胞核嘧啶.There are just four kinds: adenine, thymine, guanine and cytosine.腺嘌呤:在DNA和RNA中发现的含氮的碱基 ( 6 - 氨基嘌呤 ).Adenine A nitrogenous base ( 6 - amino - purine ) found in DNA and RNA.尿嘧啶 -- 核糖核酸中的一种嘧啶,与腺...
Hotels operate a collection service for their guests from the airports.宾馆为客人提供机场接机服务。You can fly direct to Amsterdam from most British airports.从英国的大多数机场都可以直飞阿姆斯特丹。The hotel's wedged right between the two airports.那...
He was diagnosed with inoperable lung cancer.他被诊断患了无法手术的肺癌。an inoperable brain tumour不能动手术的脑瘤Warning: If you ignore this error, you may render your device inoperable.警告: 如果忽略此错误, 可能会导致设备无法使用....
她被人行道上一块隆起的地面绊了一下.She tripped over the bump on the sidewalk.敢情是钓索在它高高隆起的背脊上滑动了一下.The wire must have slipped on the hill of his back.她把双手放在自己隆起的肚子上。She laid her hands on her swollen belly....