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问题 not until和not unless

请问应如何区分not until和not unless呢?Government cannot inject a single dollar into the economy until it has first taken that same dollar out of the economy.这个句子until可以换成unless吗？还有本句应如何理解呢，中文意思看不太懂，什么是政府把钱拿出来才...

问题 as在句中的功能和成分是啥

He pictures people as he sees them instead of as they are.1. instead of这个短语介词可否这样定义？由两个或两个以上单词构成，作用相当于一个介词的短语，就叫短语介词？也可以叫复合介词吗？2.as在从句中的功能和做啥成分？

问题 for long 和 for a long time 可以互换吗

老师好！请问 for long和 for a long time在句中可以随便互换使用吗？

问题 为什么if从句和主句都用would

If you'd come along and support us, we'd really appreciate it. 如果你能前来支持我们，我们真的会为此感激不尽。这是麦克米伦英语词典上的一个句子，为什么if从句和主句都用 would 啊？

问题 如何一眼区分句子中的非谓语动词和谓语动词

...是这样就比较慢而且可能曲解。我的问题是：1. 谓语动词和非谓语动词在形式上有什么绝对的差别呢？2. 如果谓语动词和非谓语动词形式上完全一样（都有哪些形式完全一样的情况呢？比如，我只知道一种情况：“名+过去分词...

问题 to which定语从句的句子（雅思阅读例句）结构分析是否正确

...是否正确，请大神之指正。For  example,  one  graphic illustration  to which  children might readily  relate is  the estimate that rainforests are being destroyed at a rate equivalent to one thousand football  fields  every forty minutes - about the duration of a normal classroom ...

问题 什么是类指和特指（如何区分）

关于名词的知识点中，什么是类指，什么是特指？如何区分？

问题 翻译求助

Carol was at the coffee machine, stoking up for the day. 这个stoking for the day是喝了一天的，还是为一天做准备？

问题 句式分析

Accepting ourselves exactly / as / we are / at this present moment / provides / the courage to move forward (adv.).老师们请帮忙分析下成分  谢谢~

问题 other的形容词用法和不定代词修饰名词的用法的区别

请分析一下 other 的形容词用法和不定代词修饰名词（如 other eggs）的用法的区别，谢谢！

问题 如何理解句中的which和that

Dr. Myers and Dr. Worm argue that their work gives a correct baseline, which future management efforts must take into account. They believe the data support an idea current among marine biologists, that of the “shifting baseline.”请问：如何理解句中的 which 和 that？

问题 动词的时态（涉及一般过去时和现在完成时）

But soon after retirement, all of the hobbies become as boring as the jobs they ______(leave). 答案给的 left 和 have left。我想请问曹老师这里为什么可以用have left？

问题 doing和to do的选择问题

I suspect that whatever Facebook has done to invade our privacy is only the beginning, which is why I’m considering canceling my account.  这个空，填invading和to invade的区别在哪里呢？invade的动作都是Facebook发出的，从哪里判断，是不定式的形式呢？

问题 句中的on和to做什么成分

Bending the global emissions curve on to a global trajectory towards net zero is really the first and foremost task we have to tackle.句中bending the global emissions curve on to中on和to分别作什么成分呢？是做curve的两个宾语补足语吗？谢谢回答

问题 形式主语和形式宾语后面接什么成分

请问形式主语和形式宾语后面是不是可以接句子、to do、doing三种形式？比如：Mrs. Smith complained to me that she found it simply impossible to communicate with her sixteen years old daughter.后面的to communicate with her sixteen years old daughter 是不是也可以写...