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问题 all these years后面必须接完成进行时吗

语法填空题:All these years these talented writers __________ (contribute) articles to our magazines.这里答案给的是have been contributing.这是唯一答案吗？为什么要填完成进行时态不能填过去时或者现在完成时？

问题 near-certain 是不是复合形容词

A recent drop in the price of rhino horn did not come soon enough to save the northern white rhino from near-certain extinction.这句话摘自Washington Post,其中near-certain的结构和意思看不懂，是复合形容词吗？

问题 难句分析（摘自《柳林风声》）

So spoke the Badger, not knowing what the future held in store, or how much water, and of how turbid a character, was to run under bridges before Toad should sit at ease again in his ancestral Hall.这句话摘自《柳林风声》，原文翻译：獾说是这样说，但他并不能预测未来会...

问题 如何理解a month of Sundays的意思与用法

在一篇口语对话中看到下面的对话： Bob: Well, Fred! Come right in! Haven’t seen you in a month of Sundays! Fred: Good to see you, Uncle Bob. 请教一下，其中的 a month of Sundays 是什么意思？

问题 在下列句子中that's why 后是什么句型结构

在下列句子中that's why 后是什么句型结构:That's why my administration is doing everying we can to reverse this trend and promote more competition in the marketplace.

问题 一道选择题（涉及until与unless的区别）

As we can see, light won’t bend around the corner _____ it’s made to do so with the help of the objects that can reflect light.A. until      B. unless答案为 unless，A 为何不行? 请解释一下! 谢谢！

问题 这个句子中的using which是什么用法？十分不解

The specimen is loaded by a SHPB system,using which static tensile load is appiled to the specimen and maintained before applying the dynamic load.大概意思是：试样被SHPB系统加载，直到在施加动态荷载前，静态荷载首先被施加在试样上并一直维持此状态。

问题 请分析句子结构（scattered和embedded在句中作什么成分）

I am referring to the wealth of expertise, ideas and latent insights that lie scattered across or deely embedded in their organisations.请分析句子结构，scattered 和 embedded 在句中作什么成分？

问题 kiss away sb's tears是英美国家的习俗吗

He tried to kiss away her tears. 他想吻掉她的眼泪。请问：kiss away sb's tears 是英美国家什么样习俗？“吻眼泪”的习俗喻意是什么？

问题 too great a strain 中冠词的位置

The responsibility of keeping the water right and of running the engine, and the danger of my making a mistake and blowing the whole factory to pieces, caused too great a strain. too 是副词，great 是形容词。它们的位置为什么在冠词前。这是什么语法点？

问题 长难句翻译

One reason why it is hard to design and teach such courses is that they can cut across the insistence by top American universities that liberal-arts educations and professional education should be kept separate, taught in different schools. 1 请问这句话怎么翻译？ 2 that liberal-a...

问题 and​前面是系动词时后面也必须是系动词吗

前面是系动词，and后面也必须是系动词吗？还是只要是动词都可以。比如：He seems to have much money and receives a lot of gifts.这样可以吗？

问题 非谓语动词的过去分词形式作后置定语

...prises, as a squeal here and there in the dark announced, but we did learn to "see with our feet" -- lessons in trail Braille. 问题：请问announced是非谓语动词的过去分词形式作后置定语，修饰squeal？

问题 名词单复数（ Each can be taught opposite solutions。）

The two halves of the human brain behave independently, such that each half can be taught opposite solutions to simple problems. 请问solutions用复数怎么理解？

问题 with his work...

John received an invitation to dinner，and with his work ________，he gladly accepted it.A．finished B．finishingC．having finished E.  having been finished答案A，没有问题。(with sth done结构）我的问题是：B，C和E是否可以？由于finish 既可以用作vt, 又可以用...