我们可用反应式表示这种化学变化.This chemical change can be expressed by an equation.按照反应式生成烷基离子.Formation of an alkyl ion occurs according to reactions.这个化学反应的反应式是刚才所讨论的那个反应式的逆转.The equation for this chemical reaction is the reverse of...
小于90度的角叫锐角.Angles of less than 90 degrees are called acute angles.他的年龄不会小于三十岁.He cannot be under thirty years of age.这些人承受的压力往往小于那些职位仅次于他们的人。Such people often experience less stress than those in the ranks immediately be...
Her brusque manner concealed a caring nature.她举止粗鲁但实际上很关心他人.She concealed her pregnancy right up to the moment of birth.她隐瞒了自己怀孕的事，直到孩子出世。From a concealed vantage point, he saw a car arrive...他从一个隐蔽的有利位置望出去，看见一辆车开了过来。Suc...
如果使用得当，避孕套是很有效的避孕手段。Condoms are an effective method of birth control if used with care.虽然多数避孕套含有杀精剂，但也有一些是不含的。Although most condoms contain spermicide, there are some manufactured without.想到老师将分发避孕套给学生使一些家长愤慨不已。The prosp...
He has all the makings of a fine musician.他具有优秀音乐家的各种素质.He does not have the makings of a teacher.他不是做教师的材料.In her hands the mother cradles a coal - the makings of a fire.在母亲的手中拿着一块煤 - 用来生火.Sweet taro is crop of makings ...