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问题 as if引导的虚拟语气

The usually sleepy atmosphere disappears and all the people feel as if they are at a big party.这个句子中as if 后面的are 为什么不改成were呢？

问题 可以同时省略主句和从句的主语吗

Due to the distance between the glasses and the lens when swimming away from the crowd.这个句子是不是把主句和从句主语都省略了？

问题 shoot 的理解(投篮or开枪)

Just when he was about to shoot, he fell down and hurt his left ankle.翻译该句时应该翻译成正当他投篮时还是开枪时？如何判断这两个意思中的哪一个？

问题 副词 frequently 的用法

A compound noun is a fixed expression which is made up of more than one word and functions as a noun.Such expressions are frequently combinations of two nouns.frequently的用法对吗？这里frequently修饰什么？以及frequently如果放句首和句末，表达的意思有什么不同？

问题 for that's what life is made of. 这里的what life中的what怎么理解含义用法呢？

If you love life, do not waste time, for that's what life is made of.不理解的地方：1）for是表示原因，表示原因的for应该是从属连词，但为什么很多书或网上说这种表示原因的for又是并列连词呢？很不理解。2）对于that's what life is made of: that指...

问题 怪句分析关于convinced

She would call me on the phone, convinced that a tornado was coming her way and that she was going to die.这句话convinced做什么句子成分呢？应该不是谓语动词吧？句子中是不是有省略呢？请老师帮忙分析一下句子吧？谢谢

问题 两处难点，请教老师了，谢谢

Immediately inside the first thing shoppers may come to is the fresh fruit and vegetables section.本句中的红色部分inside the first thing和come to，看不懂，是什么意思什么结构做什么成分呢？麻烦老师了，谢谢。

问题 长难句分析和翻译

But last year, the British competitor Chris Boardman set world records while winning titles in the Olympic cycling pursuit events on a custom-built, carbon-fibre bicycle with lower weight and wind resistance than standard models.

问题 through the night 的用法

I often awoke and found myself sitting up in bed through the night.through 是穿过意思，这句中是不是表示我总是醒的动作发生于夜晚从头到尾的时间段内，整晚。

问题 the problem of hers的用法疑问

Lucy never forget the girl and the problem of hers.hers 能用 she 吗？

问题 too可以用在句子中间吗

请问一下，试卷上有一句Diets have changed in China ——and so too has its top crop.有什么语法吗？too为什么用在中间？谢谢了！

问题 专有名词的后置定语

Cholera is coming back，warns the WHO，a powerful medical and environmental organization under the UN dedicated to maintaining world healthy. 请问，这里的UN与dedicated之间是不是应该加个逗号呢？ 我在语法书里看到专有名词后面是需要用逗号隔开的。

问题 timeout 什么意思

That's the advice from a new study that finds that people who sit for extended periods of time without taking short breaks are at higher risk for heart disease than those who take more frequent timeouts to stand up and walk around.想问一下timeout在这什么意思?

问题 动名词可数吗

As soon as the light in the bedroom went out there was a stirring and a liuttering all through the farm buildings.这里的stirring和fluttering并不像painting和swiming那样变成一个真正意义的名词，为什么也要用冠词a，而且它的单复数有什么意义呢？

问题 关于if语法问题

...efited from ambition -- if not always their own then that of their parents and grandparents. 请问破折号if引导的是状语从句吗？为什么没有主语和谓语呀？省略了那些成分？为什么可以省略？then怎么翻译？求解答，谢谢哦！