- 相关词组
- air pollutionn.空气污染;
- chemical change化学变化;
- chemical resistance化学阻力，耐化学性;
- chemical compound化合物;
- environmental pollution环境污染;
- chemical plantn.化学工厂;化工厂;
- chemical experiment化学实验;
- mobile source of pollution流动污染源
- air pollution control空气污染控制;
- chemical reaction化学反应;化学式;
- chemical industry化学工业，化工;
- chemical composition化学成分[组成];
- chemical fibre化学纤维，化纤;
- chemical element化学元素;
- mixed organic and inorganic anhydride混合有机无机酸酐
- chemical warfaren.化学战;
- chemical fibern.化学纤维;
- mobile pollution source流动污染源;移动性污染源
- chemical bondn.化学键;
- chemical engineeringn.化学工程;化工;
- 今日热词
- 热门搜索
- embarrass v.使尴尬;给…出难题;
- vacation n.假期;休假;休庭期;v.度假;
- rat n.大老鼠;似鼠动物;<非正式>鼠辈，卑鄙小人;
- eur usd 欧元
- if you come to me 如果你来到我身边; 如果你来找我;原子少女猫;
- April n. 四月;
- airport n.机场;航空站;
- soviet march 苏维埃进行曲
- skillfully adv.巧妙地，精巧地;
- insect n.昆虫;
- neat adj.整洁的;爱整洁的;小巧优雅的;灵巧的;干净利落的;很好的;未掺水的;
- thought n. 思想;想法;关心;思索;v. 想（ think的过去式和过去分词）;思索;以为;认为;
