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....
The prime minister delivered the keynote address at the conference.首相在会上作了基调演说.The keynote of his speech was unity.他讲话的基调是团结.The governor will keynote the convention.州长将发表施政方针的演说....
I asked McKeown if the reunion was meant to achieve closure.我问麦基翁重聚是不是为了寻求解脱。The whole family was there for this big family reunion.全家人都来参加了这次盛大的家庭聚会。These two members of Yale's Class of '57 never miss a reunio...
I tried to reach the foot brakes but I couldn't.我试图去够脚刹，但是没能踩到。He lost a foot when he was struck by a train.他给火车撞伤，失去了一只脚。My hobbies are letter writing, foot-ball, music, photography, and tennis.我的业余爱好是写信、踢足球、听音乐、玩摄...