...表示我 ‘咳嗽过’这个事件发生在现在以前某个不确定的时间。是这样吗？ 2. Lee _____(learn) English for several years, and at last he has mastered the irregular verbs. 请教老师，唯一答案是 has been learning。我的疑惑是可否用has learned ? 谢...
The old man looked happy with laughter.laugh意为：the sound you make when you are amused or happy。laughter意为：the act or sound of laughing。laugh和laughter都可以作名词，都可为笑声的意思，句中的laughter是否可以改为laugh？另外，laugh为不及物动词，这里...
...拔火罐，气功，或者是用中草药结合加以食物辅助都非常的有效。After emergency treatment of acute and dangerous diseases, acupuncture, moxibustion, massage, cupping, qigong and a combined treatmen...
We do not know exactly what happened that eliminated so many species in a relatively short period of time, but there are several possible explanations. 托福写作中句子，还请老师指点，谢谢！
...个人；几件事物a couple of minutes几分钟I've
seen her a couple of times before.我以前见过她几次。
那么I saw a couple of men get out.这句话是不是也可以翻译成：我看见有几个男人出去了。？a couple of minutes是不是可以翻译成几分钟？
Then write how much you want to buy of each ingredient. （书上）Then write how many you want to buy of each ingredients. （自己会这样说）而且书上接下来还给了ingredients 的清单：two tins of tomatoesa packet of spaghettifour onions
...se walls are funny. First you hate them, then you get used to them. Enough time passes, you get so you depend on them. That's institutionalised.请问you get so you depend on them这句话是什么结构，完全看不出来!
……facilitating the building of a community with a shared future for mankind……一，之前有见到过a community of a shared future……请问这里到底是用with还是of？ 二，请问这里的build可以换成erect或其它词吗？