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问题 be a while是什么意思

However, the robots are still being honed and developed, so it’s going to be a while before NASA can show them off.请问：be a while 是什么意思？

问题 period的用法疑问(为何period后不加of)

...achieved by a brief period lying, or even sitting down. The body's tissues are self-repairing and self-restoring to a degree, and function best when more or less continuously active.参考译文：“休息”，从使肌肉得到放松等方面来看，只要稍微躺一躺，甚至坐一坐就能...

问题 这个when what…是什么从句

...老师分析一下，谢谢！All this is just anecdata, when what we need now is some hard evidence of what UK firms are doing. 这些都是想当然，我们现在需要的是英国公司在干什么的确切证明。

问题 非限定动词时间问题

The continent’s museums are still coming up with good reasons to get you on a plane.不定式是发生在谓语时间之后的动作，那么我想问这个谓语指的是谓语中的助动词还是整个谓语部分（包括非限定动词在内的谓语部分）.上句中的非限定动词to get...

问题 If it were not for the rain,i would go hiking now.

请问下老师1. for the rain 可以写成for raning吗？2. 如果我要表示要不是现在正在下雨，我可以写成if it were not raining 吗？

文章 Any 和any other用法刍议

...than anyone in the world. （英国文学名著）7. President Obama has now granted more commutations than any president in this nation’s history.        以上这些例句难道都错了吗？如果我们仔细体会，会发现应该是作者故意而为。那么作者为什么这样...

问题 be scheduled for中的for可以换成其他介词吗

...举行。上面的句子是书上的句子，请问这个 for 可以换成 on 吗？比如说：The meeting is scheduled on April 6th.又如下面一句：The meeting is scheduled for 10 am. 会议定于上午10点举行。其中的 for 可以换成 at 吗？比如说：The meeting is scheduled at 1...

问题 如何理解“Two dozen of what were now 240 countries had HDIs above nine--and something else remarkable had happened.”

1. 完全不理解句子，找不出句子的主干部分和从句部分2. 为什么were和now一起出现呢？

问题 文章中情态动词的含义与用法

...e done with even a part of those hours. Five thousand hours，i  am told, are what a typical college undergraduate spends working on a bachelor's degree. (2) In 10,000 hours you could have learnt enough to become an astronomer. (3) If it appealed to you, you could be reading Homer in the original ...

问题 构词法

 Children need to be educated on the dangers of drug-taking. 问题1：构词法是规定先宾语后动词吗？drug-taking是否可以改为taking-drug?问题2：句子是否可以改为： Children need to be educated on the dangers of taking drug. 

问题 这里为什么用不定式and to be made，而不是现在分词and having been made 呢？

He turned to Strickland."Have mercy on her," he implored him. "You can't let her do anything so mad.""She can do as she chooses," said Strickland. "She's not forced to come.""My choice is made," she said, in a dull voice.Strickland's injurious calm robbed Stroeve of the rest of his self-control. Bli...

问题 句子改错

John’s car service is ever more popular because his cars combine both usefulness and affordable prices.

问题 这个save是介词还是连词

Yet only one of his books is now in print, and his vast body of writings on music is unknown save to specialists. 上述句子中，在牛津字典中有 unknown to sb 这个用法，to 应该是介词吧？save 放在 to specialists 前，是“除了”的意思，但字典中有介词和连词两...

问题 可数名词和不可数名词使用辨析

It is said that long ago there used to be 10 suns in the sky. Each day, one of the suns would travel around the sky on a carriage driven by Xihe, the mother of the suns. One day, unexpectedly, all 10 suns simultaneously appeared in the sky, which instantly dried the crops and caused disaster to the ...

问题 关于现代语法里的焦点下加状语

...rkers,) in particular, are dissatisfied with the government.Even (Bob) was there.We bough (some beer) as well. She merely forgot to give her husband (a kiss).He favours particularly (the young women).She is charming only to her (wealthy) clients.我的问题是：焦点下加状语也是属于...