每个人都有沮丧失意或情绪低落的时候。Everyone has days when they feel dejected or down.得意时，朋友识我；失意时，我识朋友。In prosperity our friends know us; in adversity we know our friends.--John Churton他不得不强忍住失意的泪水.He had to fight back tears of frustrati...
所有四价配位体对铜都有钝化效果,能与铜形成平面的四价配位络合物.All the tetraderadentate ligands were found to be effective with copper, which forms planar four - coordination complexes.可以通过形成络合物的方法来破坏氰离子发生钝化作用.The destruction on inactivation of cyanid...
使用类固醇的男人纯粹是受虚荣心的驱使。Men who use steroids are motivated by sheer vanity.嫉妒驱使人们去杀人。Jealousy drives people to murder.为强烈的决心所驱使的人a man driven by ferocious determination...