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问题 operate的理解难点

Some online shops may operate a 1500% gross margin or “mark-up”.请问句中的 operate 如何理解?查词典没有找到合适的解释。另外,mark-up用词典上的意思好像也解释不通。

问题 这里combined作的是什么成分

a kitchen and dining room combined这里combined作的是定语吗?作的是谁的定语呢?

问题 in有因为的意思吗

Six in 10“unretirees”are increasing their savings in anticipation of a longer life.in还有“因为”的意思吗?出自哪个词典?

问题 介词宾语从句中连接词使用问题

在介词宾语从句里,连接副词能不能引导?比如这句话:Shanghai did not originate from where the tall buildings are.这句介词宾从是连接代词who引导的,正确吗?we should appeal to who are living in those wealthy countries to donate money to the poor people.

问题 分词在这个句子中是什么成分?

The doctor,not wishing to makje her more nervous,didn't fully explain the seriousness of her condition.请问两个逗号之间的这段分词,它属于什么成分,为什么用逗号完全分隔开? 可以看作非限制定语么?(不知分词可以作非限制定语吗?)

问题 条件句的时态问题

...下这个问题-----May I play the computer tomorrow ,Dad?-----Certainly not,unless your homework_____ by then.答案给的是 will  be finished,请问选has been finished 为什么不可以?我以前在网上看到这样一种说法:在条件和时间状语从句中,用现在完成时代...

问题 when compared与when comparing

When compared with the size of the whole earth, the biggest ocean does not seem big at all.请问老师,这句话里面When compared,为什么不可以换成comparing呢?我觉得这句话并没有被动的含义,为什么不可以用现在分词呢?谢谢!

问题 exposition anyone的用法

while they were on the job of exposition anyone这里的exposition anyone是什么用法?

问题 either用法

But don't fear for the penguin in Alaska, either: "It was doing fine, living on herring," Dr. Boersma said.这句话的either加冒号什么用法,是副词还是连词?修饰哪个词?

问题 不定式时态和语态问题

...变化。例如:一般体 (to) do进行体 (to) be doing完成体 (to) have done完成进行体 (to) have been doing不定式也可以有被动语态,例如:(to) be done(to) have been done不定式符号to打在括号里,意思是to在有些场合是要省略的。例如在情态动词后的...

问题 虚拟条件句的宾语从句的时态问题

I would not have come here if I had known he would be here.我知道这是虚拟语气,与过去事实相反,我的问题是能不能把 he would be here 改成 he was here, 这两个句子有什么区别?

问题 hurt可用作定语吗?

老师说,当用于名词前作定语时,要用wounded,习惯上不能用hurt。但是看到了这样的用法:They boy came home with a hurt knee. 请专家老师给予分析,非常感谢!

问题 请问划线部分作何成分,谢谢!

About four meters long, the room served as a reception hall for important visitors.

问题 奇怪的lies用法

...connects to the heart of an authentic America that lies buried somewhere under a million tons of junk culture.本句中的 lies 是不及物动词么?在这里是什么用法啊?请教老师。谢谢了。

问题 dazzling record 如何翻译

Mary says that it isn’t a dazzling record, but it isn't rubbish either. 请问这个句子如何翻译?重点是 dazzling record 如何翻译?