氯化铝和氨水反应

他多久给你发一次电子邮件?（英语翻译）（how often） Mr.Black often wears dilk shirts.对Mr.Black提问怎么做? 英语翻译can't learn it well .But English is very easy for me .I'm good at it .I'm very glad to tell you something about how I study English .First ,I think an interest in very important .when I was in Grade One ,we had a new subject-English .It w 用英语写一篇电子邮件..邀请你的外教black看电影 中译英~~~人工翻译!外贸英语函电 、英语泛读 、 国际商务单证实训 、 涉外文秘英语、 远洋运输业务 、 国际货运代理 、 英语翻译 、 进出口贸易实务 、 商务英语、 基础日语 、 计算机应 英语翻译越短越好 英语翻译RT英文英语歌颂友情诗歌准确些参加比赛用紧急.越快越好.就这几天.I've been thinking about you and meAnd how our friendship came to beHow long ago I hoped that weCould be Forever FriendsAnd how I look back on these I often ask my English teacher some questions ( ) emails十分钟, do some exercises还是do some exercise对 In English class our teacher often shows some picture_________us. our english teacher often writes some new key words on the 英文初学者可以看的小说,要有趣 推荐几本英语小说,适合初学者的 适合初学者看的英文故事书,最好简单点的. 额,取一个英文名,女生的.好听一点额.带上音标.不要太常见的额.我的名字里带棋，和文。或者关于周杰伦的也可以要女生的额Keven 是男生名字额 茬字粤语怎么读 Our teacher often gives us some good advice on [ ](怎样学好一门功课) 翻译The teacher gave us some advice on how to spend our spare time . Some good advice on learning English is gifting by our English teacher这句话对吗 Our english teacher always ( ) us some useful advice.(give) 怎么填? 改为被动 our teachers often give us some advice on our study "男"字在粤语的发音系读nan?nam?lan?lam?乱晒.. 困字粤语怎么发音 请问粤语“让”字怎么发音 去字粤语的发音和哪个字相同 看英语（纯英文）名著需要注意些什么,现在在读《欧亨利短篇小说》别说废话,和二楼似的,查词典.来点有意义的 room是什么意思? shop和room和reading room和sitting room的意思 ROOM什么意思 淬字粤语怎么读（发音与哪个字相同） 坌字粤语怎么读（发音与哪个字相同） Mozart was——in Salzburg ,Austia in 1756.破折号内填啥?