sophiabian
1.didn't be乍看起来没错，但外国人不这么用，do（did的原形）叫助动词，be是be动词，基本不同时出现在句子了. 改成wasn't比较好，个人感觉更好的是改成hasn't been2.opportunity（机会）不知道是你拼写错误是打字笔误了，总之还要将它改成复数：opportunities综上，基本上你的句子应该改成:He hasn't been\wasn't aware of his wasting a lot of opportunities until graduating from college.这样基本没有致命错误了，但看着总是让人不舒服。因为像until graduating这种都是用法比较少见的。友情奉上我的两种翻译,个人翻译，不作权威，纯粹交流：1.Not until he graduated from the university was he aware that he had wasted many opportunities.2. He wasn't aware that he had wasted a lot of opportunities until he graduated from college.
shh小辣椒
didn't 和be 不能在一起使用He wasn't aware of his wasting a lot of apportunities until graduating from college.
kasumi0330
“浪费”的英文：waste
读法：英 [weɪst] 美 [west]
释义：
1、n. 浪费；废物；荒地；损耗；地面风化物
2、vt. 浪费；消耗；使荒芜
3、vi. 浪费；变消瘦；挥霍钱财
4、adj. 废弃的；多余的；荒芜的
Crop waste作物废物
waste pipe污水管
waste paper废纸
例句：
1、They do not know what to do with the waste.
他们不知道该怎样处理这些废物。
2、So please do not waste your time and ours if you lack the know how.
所以，请不要浪费你的时间和我们，如果你缺乏知道如何。
扩展资料
waste的近义词：lose
读法：英 [luːz] 美 [luz]
释义：
1、vt. 浪费；使沉溺于；使迷路；遗失；错过
2、vi. 失败；受损失
3、n. (Lose)人名；(英)洛斯；(德)洛泽
短语：
1、lose to输给
2、lose colour失色
3、lose ground股市下跌
4、lose patience失去耐心
5、lose countenance惊慌失色
