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...
Human perception is highly imperfect and by definition subjective.人的感知具有高度缺陷，而且天性主观。an imperfect understanding of English对英语的不透彻理解Soot is the product of the imperfect combustion of fuel.煤烟是燃料不完全燃烧的产物....
他说道,维多利亚州仅通过修改传票上的措词这一项改革就节省了四十万澳元.He said Victoria saved $ 400,000 by merely changing the wording on a summons form.请将这些外币兑换成澳元?Can you change this into Australian Dollars?我们可以给你报2000打纯棉T恤衫,抵达悉尼港成本、保险加运费价16澳元.We can off...
They can all be made in minutes by even the most ham-fisted of cooks.即使是最笨手笨脚的厨师也能在几分钟之内把它们全部做好。He cooks a mean salmon.他烧鲑鱼的水平一流。Cooks are also employed aboard ships and at construction and logging campsites.另外厨师还能就职于船只和...
He tried to restore some semblance of normality to their home life.他力图使他们的家庭生活恢复正常.After the flood there was a slow return to normality.水灾后,情况慢慢恢复正常.A complete return to normality may take weeks.完全恢复正常状态可能需要多个星期....