实际上，它是用来将铀浓缩以制造武器。It was actually used for enriching uranium to weapons-grade levels.铀可溶解于海水。Uranium is soluble in sea water.在每1000个铀原子当中,只有七个是铀235.Only 7 uranium atoms of every 1,000 are U - 235....
After more misses, they finally put two arrows into the lion's chest.又射偏了几次之后,他们终于把两支箭射入了狮子的胸膛.The lion roared once, and sprang.狮子大吼一声，跳了起来。He removes a thorn from a lion's paw.他从狮子脚掌上拔下一根刺。...
甲壳虫乐队——我是百听不厌.The Beatles— I never get tired of listening to them.土壤排水畅通，鼻涕虫就不会造成什么麻烦。The soil drains freely and slugs aren't a problem.所有的成年狗至少每半年要例行打一次虫。All adult dogs are routinely wormed at least every six month...