空气中所含的氮的比例是多少?What is the percentage of nitrogen in air?作物收获后, 他测定了作物中氮的含量.After harvesting the crops , he tested them for nitrogen content.不含碱性氮的化合物包括吡咯 、 吲哚 、 咔唑和苯咔唑.Non - basic nitrogen - containing series include pyr...
Real change can not be constrained by the rules, hunches, or imagined.真正的变化是无法被规则制约 、 预感或想象之中.Changes in temperature occur slowly and are constrained within relatively tight bounds.温度变化缓慢，而且局限在相对较小的范围内。The iteration of g...
I shall await your answer to my letter with eagerness.急盼复信.Numerous pitfalls await unsuspecting investors.数不清的陷阱等待毫无戒心的投资者.I shall await you at seven - thirty or thereabouts.我将在7:30分左右等着你....
以前我每一期都会从头读到尾。I used to read every issue from cover to cover.最近一期的《柳叶刀》杂志中强调了这一日益严重的问题。The growing problem is underlined in the latest issue of the Lancet.该报纸每周一期，讽刺各位政治领导人。The newspaper came out weekly. It satirized pol...
A big, heavy overcoat hampers you when you try to run.你想跑时,大而重的外套会妨碍你.Prejudice sometimes hampers a person from doing the right thing.有时候,偏见会妨碍人正确行事.This behavior is the opposite of modeless feedback, and it hampers flow...