be of good quality .

be of good quality . be of high quality是什么意思 英语翻译要用到 of good quality good quality of sth 和sth of good quality一样吗 one of his good 什么（quality）is working hard be+of+adj.+n.的用法这种用法我不太习惯,例如：They aren't of good quality.谁能帮我讲讲? Quality of be good for be good of 区别 It must be one of quality and fashion. good quality 怎么读? quality never good This kind of computer is of good quality.这句子中of能否省略吗? 综合14.If you really want yourself to have good quality of life ,you must （ ）always（）so much.（not ...be smoking / not ...have smoked / not ...be smoke / be not ...smoking）这题选什么,理由是. These clothes are of good quality 这句话中的of是什么用法 his trousers are of good quality急谁能告诉我这个是什么结构啊?为什么要用OF the products are of good quality 中of 的作用the details about it is better his trousers are of good quality急谁能告诉我这个是什么结构啊?为什么要用OF The quality of a good manager,and the classfication of staff .Please