Methods: The synthesis uses urea as material process includes condensation, opening loop, chloridization and nitrosation reaction. 方法以尿素为原料,经缩合, 开环, 氯化,亚硝化而得.
The turning point in the process of growing up is when you discover the core of strength within you that survives all hurt.当你从内心深处找到一种可以忍受一切痛苦的坚强力量时，你的成长历程就会出现飞跃。Behind the mocking laughter lurks a growing sense of uneas...
身材瘦削而且训练艰苦的女运动员行经可能不那么频繁，或者根本不来月经。Lean hard-training women athletes may men-struate less frequently or not at all.妇女的平均月经周期是28天。The average length of a woman's menstrual cycle is 28 days.她于13岁开始有正常的月经,周期为28～32天,有轻度的...
丛林法则要求的是：杀戮或者被杀。The law of the jungle demands: kill or be killed.不可改变的宇宙法则the unalterable laws of the universe这真是墨菲法则：一用备用轮胎，保准扎孔。This was sod's law: when the spare tyre is in use, you will have a puncture....
The ballerina remained suspended in a faultless arabesque.这位芭蕾舞女演员一直保持着完美的阿拉贝斯克舞姿不动。She moves with the natural grace of a ballerina.她的动作具有芭蕾舞演员自然优雅的丰姿。When she was a little girl , she dreamed of becoming a ballerina.她小时候...
On the other hand, the magnetohydrodynamics MHD is always the focus in electrochemistry.另外, 电化学中的磁流体动力学效应也一直是人们所关注的焦点.The hyperbolic conservation laws with relaxation appear in many physical systems floodwith friction, m...
The proposal has been embodied in a draft resolution...那项提案包含在决议草案中。Jack Kennedy embodied all the hopes of the 1960s...杰克·肯尼迪代表了20世纪60年代的全部希望。That stability was embodied in the Gandhi family.甘地家族体现了那种坚定的品质。For twenty-nin...