牙齿的齿是什么偏旁

i have never heard of something.hear是及物动词,为什么加of I have never heard of that before可不可以说成I had never hear of that before? 成本运营中心总监英语怎么说 成本运营英语怎么说原话是：公司的经营目标是通过优秀的流通服务及成本运营体现自身价值,（我觉得成本运营和运营成本在翻译上有所不同,请了解金融英语的高手帮帮忙） 运营费用 用英语怎么说 Dear editor I am a high school sudent 开头的 短文改错.短文改错?Just a few days before ,one of my close friend told me that he was going to stop the school .he said that he wanted to start his own business ,I tried my best to get him change 短文改错 共十处 Dear Editor,​i'm a high school student and a English lover.i'm a high school student and a English lover.i have been reading your magazine for only a few month,but i have already fallen in love with it.i want to learn eng 英语改错Dear Editor,I am a high school student.A few days before,76.one of my very good friend I have never met Carl before ,nor have I heard of himI have never met Carl before ,nor have I heard of him为什么这句话是并列句,我感觉是复合句,他们的主语不都是I what it THANKS. I never believe a word he ;I have never heard him a word of truth那两个?分别该填什么,speak/say,为什么这样填 It takes what what it takes 有什么区别? It takes what it I have never heard of it ____ before.A.talking about B.talked C.talked of D.being talked of请问为什么选C,别的答案为什么不对,还望大虾指教一二~ the derector had her assistant [pick] up some hot dogs fot the meeting为什么不能用[picked] [picks] 英语演讲比赛题目：the word changed the world .跪求英语帝帮忙写一篇700左右的文章.本人想写乔布斯的,但不知道怎么下笔.如果可以帮我写个乔布斯,不行就随便写个吧,重谢!这是我全部财富了. 在大学,感觉迷茫 感到很迷茫觉得现在老实孩子怎么这么艰难的生存、他们不打架、不欺负人.却要经常遭到别人的欺负、小时候因为家长的“好孩子”教育、经常受欺负、到现在依然怕这个怕那个.记得第一 甲午战争是[ ]为全面占领朝鲜 甲午战争时期清和朝鲜的关系清朝先派兵去朝鲜与日本作战,那朝鲜在干什么? I have never（ ） such a place with so strange a name 有四个选项 A.heard from B.heard of C.heardD.heard to I have never heard of the story.改为一般疑问句hurry up ,or you'll be late for school.同义句the tree is very tall.we can't reach it.合并I was sweeping the floor,it began to rain.合并 What it Takes 歌词 I surf the internet 3 hours a day 句子可以吗?I surf the internet 3 hours a day / 3 hours every day / 3 hours per day.我写的这个句子 表达行么?3hours 前面不加 for.是否都行 因为记得是完成时态,一般才用 for,这里一 请问有没有一个有深刻道理的一段话 你说梦想未来和现在很不一样 这是什么歌 l change the world中的那道数学题如题 求原题 Helen would like something to drink 怎么改成一般疑问句 英语翻译 something用于疑问句除了Would you like something to eat?还有哪些方面 甲午战争前后,美国或朝鲜对华政策及其启示?尽量清楚全面,内容越多越好!