The half - life of francium is 22 minutes.钫的半衰期是22分钟.Francium is the densest of the Alkali Metals and also radioactive.钫是碱金属中密度最大的,具有放射性.Even Francium's most stable isotope, Francium - 223 only has a half - life of ...
TV franchises will be auctioned to the highest bidder.电视特许经营权将拍卖给出价最高的投标人.College Hunks employs 130 people and has 16 franchises in 10 states and D.校园俊男拥有130名雇员并在首都和十个州拥有16个分支机构.Of the first three franchises to be awarde...
如果不加以遏制，杂草就会疯长。If left unchecked, weeds will flourish.他遏制暴力犯罪增长的努力一直是螳臂当车。His efforts to stem the tide of violent crime have been as effective as Canute's.他遏制住怒火.He held his anger in check....
The spill could wipe out the Gulf's turtle population.这次原油泄漏可能会使波斯湾的海龟灭绝。Why not wipe the slate clean and start all over again?为什么不洗心革面、从头来过呢？Wipe the mushrooms clean and thread them on a string.把这些蘑菇擦干净，然后用线穿起来。...
a hearty and boisterous fellow活泼爱吵闹的家伙Uncle Ke - ting and Aunt Wang were the most boisterous of the lot.闹得最起劲的是五 叔 克定和四婶王氏.The Otterhound is amiable, boisterous and even - tempered.奥达猎犬是和蔼的 、 吵闹的狗,性格平静.A boisterous horse...
You don't care about anything but yourself and your precious face.你什么都不关心，除了你自己和你那张娇贵的脸。They look too wasted to care about much.他们看上去疲惫不堪，以至于顾不上太多。Joe Sixpack doesn't care about that.普通工人不在意那事。...