The other two, thymine and cytosine, are single ring structures called pyrimidines.另两个为胸腺嘧啶和胞嘧啶, 即称为嘧啶的单环结构.There are just four kinds: adenine, thymine, guanine and cytosine.只有4种: 腺嘌呤 、 胸腺嘧啶 、 鸟嘌呤和胞核嘧啶.The DNA base compo...
Cytidine ( cytosine nucleoside ) A NUCLEOSIDE formed when cytosine is linked to Dribose via a � � - glycosidic bond.胞嘧 啶 核苷:当胞嘧啶通过β - 糖苷键与D- 核糖接合形成的核苷.The DNA base composition is 32.6 - 33.1 mol % guanine plus cytosine.D...
I threatened them with public exposure.我扬言要公开揭发他们。In the swift the day before that year’s wheat harvest,a rainstorm threatened.在那一年麦收的前一天,一场暴雨眼看就要来临。The project is seriously threatened by rate-capping.限定税额已严重威胁到了该项目的进展。I...
It's a bit much expecting me to dump your boyfriend for you.指望我替你甩掉你的男朋友，有点儿过分了吧？"What a dump!" Christabel said, standing in the doorway of the youth hostel.“真够脏乱的！”克丽丝特布尔站在青年旅社的门口说道。Ministers believed it was vital ...
It was performed in fashionable Casino ballrooms.人们在时髦的娱乐舞厅里跳这种舞蹈.The Casino, where she had often danced, had suffered a similar fate.她经常跳舞的赌场遭遇了相似的命运。Their taste for gambling has endeared them to Las Vegas casino owners...
在他漫长的一生中，他对基督教信仰始终是一种摇摆不定的态度。He maintained an ambivalent attitude to the Church throughout his long life.他承认自己跌到了一生中的最低谷。He admits to having hit the lowest point in his life .白日梦会荒废你一生。You could waste your whole life on ...