...tritium, a radioactive isotope of hydrogen.氢的放射性同位素氚Tritium is one of the mildest radioactive isotopes.氚是最和缓的放射性同位素之一.chemically inert radioactive waste不易发生化学反应的放射性废弃物People should keep away from the radioactive waste...
一家工厂产生的需求使得必须再建造一家工厂。The demand generated by one factory required the construction of another.建造工人必须把新建房屋的屋顶固定得更牢靠些。Builders must fasten down roofs of newly-built homes more securely.这个工厂的工人建造F-16喷气式战斗机。Workers at the pl...
She meticulously cleaned the gun and locked it away in its case.她小心翼翼地把枪擦拭干净，放进枪盒里锁好。Each week she meticulously entered in her notebooks all sums received.每个星期她都细心地在笔记本上记下所有收到的款项。The flat had been meticulously cleaned.公寓...
The mayor convoked a committee to discuss the beautification of the city.市长召集了一次委员会,讨论城市的美化问题.Helen is on the beautification committee of the city.海伦是城市美化委员会的成员之一.The train could be bringing more materials for the crazy ...
The deep crevasse yawned at their feet.他们脚下的冰川有一道深深的裂缝.He yawned heavily.他打了个大呵欠。The gulf between them yawned wider than ever...他们之间的隔阂比以往任何时候都要深。He yawned and curled his body down farther beneath the poncho.他打了个呵欠,把身子再蜷...
It's enough to make you wet yourself, if you'll pardon the expression.这足以吓得你尿裤子了，请原谅我这么说。I lay the painting flat to stop the wet paint running.我把油画平放以防止未干的颜料流动。James came out of his bedroom, toweling his wet ha...