在特殊的酸催化中, 不离解的酸不起作用.In specific acid catalysis, the undissociated acids do not contribute.所有的原子和分子系统都受光致电离和光致离解的影响.All the atomic and molecular systems are subject to photoionization and photodissociation.后者是由二氧杂环戊烷中活化较弱...
哈拉穿着库尔德斯坦常见的漂亮束腰上衣和马裤。Hallah wears the stylish tunic and pantaloons common in Kurdistan.她穿着一件带束腰的棕色绒面革夹克。She wore a brown suede jacket, belted at the waist.由此裙子可以在紧束腰线下方的腹部大幅度展开.The skirt had fullness over the abdomen, b...
She expects me to drive round collecting jumble for the church.她期望我能开车去四处收集旧物用于教堂义卖。Are you collecting for charity?你是在为慈善事业筹款吗？Hospitals are poor at collecting information.医院收集信息能力很差。...