An envelope 什么意思

An envelope 什么意思 how is an envelope 改正错误 envelope什么意思? envelope前用什么介词 back-of-an-envelope怎么翻译? a+small+white+envelope短文什么意思 The big red envelope什么意思 i have some writing paper an a envelope 怎么改错 an envelope of 有没有表观的意思？ Why do you want an envelope?同义句 I want an envelope,please.改为同义句 an envelope of 的用法This is an envelope of gasses around the planet请问汉语意思! we usually go round with an envelope during coffee break 这里 go round with an envelope 不要 用翻译软件! Why do you want an envelope?(同义句转换） ________ _______ you want an envelope?打错了，是Why do you want an envelope?(同义句转换）________ _______ you want an envelope________? what starts with an E and ends with an E but only has one letter in it?应为：An envelope mum,can l have some writing paper,an envelope and some stamps,piease?翻译中文 in an envelope along with a letter,一个e开头的单词,这是什么单词啊 Envelope 前面加a 还是 an?虽然是E开头,但是发音是辅音