负数用科学计数法表示

英语翻译 虽然那时我们日子过得很艰难,但母亲还是偶尔设法给我们做些可口的小吃.用now and then翻译 英语中名词前A\AN的特殊情况,比如a UFO,A\E\I\O\U开头但不是AN,还有什么多点， 前面加an的英语名词有哪些,能写多少写多少~^.^不是那5个元音字母开头就是加AN的，是元音音标，你们知道哪些就给我说说吧 英语中怎么看一个名词前是加A还是加AN能解释详细一下吗?讲得细哦!谢谢拉! 初中英语中名词前加an的有哪些?比如说apple加an,而useful前就不加 最好多点 too adj for sb to do可以跟so..that/enough to do互换么RT till then的用法另外它可以有将来时的吗?如：Till then she will know.那上面的句子对吗？ till then和till that time 的区别（回答得好加分） from then till up till that time和by then的区别? healthy food 作文80字, Healthy food作文,50字至80字,不用太复杂. 预测,污染,科学家,公司,宇航员各用英语翻译 是i am going to the school对还是i am going to school对呢 名词复数的发音规律 when he got there ,the train had alreadly left...能改为by the time i got there. I going to school翻译中文 He went to school without going to school这句什么意思啊,怎么翻译? I go to work by car every day.（同义转换） 将l go to work by car every day.改为同义句[1] l go to work [ ] [ ] [ ] every day.[2] l [ ]to work every day. Every day i go to work by car(改为同义句)Every day i ( )( )work healthy food and drink for children.这句子里的“for children”作什么成分呀? 2.by go can the You No.2314 Qingdao to train(连词成句）3.to pet want shop gate the at l north to the go（连词成句）1.the People traffic know must all rules(连词成句) 为什么“Are they healthy food and drinks?”中的food没有加s,而drink却加了s?ps：前面没有任何句子影响 连词成句:do,want,go,by,there,plane,you,to(?) 英语翻译Is your food and drink healthy?A lot of ice cream,hamburgers and cola is not healthy.Meat is healthy but too much meat is not good for children.Cola and candy arevery sweet,and too much suger is bad for you.Eat the right food and be healt 他们开车回家用英语怎么说? 英语翻译是 我贫穷上学?还是我贫穷但我要上学? “谢谢你开车送我回家”用英语怎么说 1.Everyone __very hard in order to improve his English在横线上填入一个以s开头的单词.2.翻译hand in hand In order to improve his English he joins in the English corner.句子成分怎么划分 I do like to watch an English film(in order to improve my listening skill)对括号处进行提问 ______ _____you like to watch an English film?