Halogen atoms contain seven electrons in their valence shell.卤原子在它们的介电子层含有七个电子.Without doubt chloroform is one of the most important compounds containing a carbon - halogen bond.毫无疑问,氯仿是含碳?卤键的最重要的化合物之一.The formation of p...
Man is a dweller on the earth.人类是地球的寄居者.I did a story on the condominium dweller's revolt at Golden sands.我曾写了一篇文章论及金沙公寓居住者们的反感.Both city and town dweller should pay tax.城镇居民都需要纳税....
When did that style of dress go out of fashion?那种式样的服装是什么时候不时兴的?Their style of clothing tends to go out of fashion quickly.他们穿衣服的风格,是倾向于很容易被潮流淘汰的那一类型.When did this style of dress go out of fashion?这种式样的衣服什么时候变得不流行了?...
The Drafting Committee will be in charge of working out a draft resolution to be submitted to the Conference for deliberation.起草委员会将负责起草提交大会讨论的决议草案.Modern controlled drafting systems use drafts of the order of 30.新式的牵伸控制...