锕射气氡的一种放射性的, 惰性的和气态的同位素, 其半衰期为3.A radioactive, inert, gaseous isotope of radon, with a half - life of 3.92 seconds.讨论了该离子交换法在分离锕 - 镧系元素上应用的可能性.The possibility of its potential application is discussed for separation of a...
They levied religious taxes on Christian commercial transactions.他们对基督徒的商业交易征收宗教税。Taxes should be levied more on the rich than on the poor.向富人征收的税应该比穷人的多.A surcharge is levied on late applications.迟交的申请要收取附加费....
Severe shock can bring on an attack of acne.严重的惊吓会造成痤疮突发。The evils we bring on ourselves are the hardest to bear.自己作的孽最难熬.This warm weather should bring on the crops.暖和的天气会促使农作物生长....
He vanished after you fixed him with a job.你给他安排好工作后他就突然不见了。Anne vanished from outside her home last Wednesday.安妮上周三突然在家门外失踪了。He walked through—and vanished. Poof! Like that.他走了过去，然后就嗖的一下子不见了。...