胚胎的性别早在受精时就决定了。The sex of the embryo is predetermined at fertilization.收集母牛胚胎的方法有两种, 一种是直接通过产道, 另一种是施用外科手术.There are two methods of collecting cow embryos -- directly through the birth canal, or surgically.目的: 探索制作小鼠多倍体胚...
I can only represent it to you by metaphors.我只能用隐喻来向你描述它.Thus, She's an angel and He's a lion in battle are metaphors.因此她是天使,他是雄狮都是比喻说法.To mix yet more metaphors, you were trying to run before you could walk, a...
汞的化学元素符号是什么？What's the chemical symbol for mercury?添加的甲基汞的回收率据报到达90%左右.The recovery of added methylmercury was reported to be approximately 90 %.这种灯是由一根充有氩气和微量汞的玻璃管组成.This light consists of a glass tube containing a...
It was imperative that he act as naturally as possible.最重要的是他要做到尽可能自然。He always speaks in an imperative tone of voice.他老是用命令的口吻讲话.The imperative mood is a kind of grammatical phenomenon.祈使语气是一种语法现象....
The money is running short , discontents are arising beneath these despotic rulers.在这种专制统治之下, 经济日益困难,不满情绪日益增长....an overwhelming sense of guilt arising from my actions...我的行为带来的沉重的罪恶感problems arising from poor ventilatio...
At Brussels airport he fell victim to pickpockets who pinched his wallet.在布鲁塞尔机场，他被扒手盯上，钱包被偷走了。Haig noted how he "looked pinched and rather tired".黑格注意到了他“看上去消瘦，非常劳累”的样子。She was a small, silent woman with pinched feature...