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问题 tie back是什么意思

If your hair is loose, it hangs freely round your shoulders and is not tied back.这句话中 back 是什么意思?

问题 难句理解

For retailers, who last year took in 24 percent of their revenue between Thanksgiving and Christmas, the cautious approach is coming at a crucial time这句话中的the cautious approach is coming at a crucial time如何理解？不懂

问题 副词能修饰短语吗

像非谓短语，介词短语等，非谓语短语本身短语里有副词修饰，外面能再有副词修饰吗？例如：Walking slowly across the grass，he pointed the gun at the lion and fired.在这里再加副词修饰可以吗?

问题 question 的动词用法

The company gobbled up a cancer-drug company, and questioned whether it would be worthwhile. 这家公司吞并了一家癌症药物生产企业，但也被质疑这种行为是否值得。这里 question 是被动吗？后面的从句是宾语从句？

问题 be thrown的用法

Over his shoulder was thrown a rough brown coat, all torn and full of holes.be thrown（throw原形）这个被动语态什么意思？throw是表示使...处于什么状态吗？

问题 as的用法

ICC, which was established in 1919, had as its primary objective facilitating the flow of international trade at a time when nationalism and protectionsim posed serious threats to the world trading system.请教;此处as用法，能省略吗？

问题 with用法一例

Advertising is the largest expense of most marketing plans, with public relations following in a close second and market research not falling far behind.with在这里表示什么意思，在句中做什么成份？

问题 句子结构分析问题

It is critically important that we proveide teachers and principals the support they need to help students reach their full potential.红色部分是support的定语吗？为什么句子的翻译是 帮助学生实现自己的潜力，这个帮助是哪部分的翻译？

问题 动词作表语的形式

After a long and busy day, all we want to do is return to a comfortable home. 这个句子中为什么return作表语的时候仍用原形，而不是不定时或者动名词形式？

问题 句子结构分析

As of Wednesday morning, the United States, which is leading the world in terms of confirmed cases, has reported 189,510 infections, showed the tally updated by the university's Center for Systems Science and Engineering. has reported 和showed 分别引导什么成分

问题 句子翻译分析

These letters are filled with his wrestling with the consequences of being the part-private, part-public creature that he became, desperate to devote himself to his writing, and yet subject to endless invasions of his privacy.句子翻译分析!

问题 定语从句还是宾语从句？

Teachers in every discipline assigned books to their students and used paper to keep track of which student had which book.请问"which student had which book"是什么语法成分？

问题 一个时态填空问题

Everything they __(do) and __(say) is intended to promote sales.请老师帮忙解答一下,为什么这2个空答案是直接用原形就可以？ "所说的话"和"所作的事"先发生,为什么不是过去时或完成时呢?

问题 then的位置

Stephen Francis observed then eighteen-year-old Shelly-Ann at a track meet and was convinced that he had seen the beginnings of true greatness. 这个句子中的 then 为什么放到动词后面，可以放到句首吗？

问题 这里的as是什么用法

请问这里的as是什么用法啊？怎么理解比较好，能否举个例子，谢谢！Woman scientists are less than, as both women and as scientists.