考研英语的某篇文章中，有这么一句话：They worked until exhausted, lived with few protections and died young.译文：他们工作到筋疲力尽，生活几乎无保障，年纪轻轻就命丧黄泉。我的问题是：这里的until是连词还是介词？不管until是连词还是...
...
they had finished their careers at 60 or whatever, will be called back to work.请教曹老师： they had finished their careers 这里为什么要用过去完成时态，而不用can finish their
careers一般现在时表示陈述一个事实？
...ing layer of texts could only have come from Archimedes. That was when his work The Method was discovered for the first time . 请问老师，这里的could have done是情态动词表推测的哪种用法？
...hatever
... AI trickery is needed to ensure that the good stuff is emitted and the bad
stuff is kept under lock and key. ... The rub is that trying to simultaneously
have generative AI that appears to be fluent and capable in composing natural
language and yet also can refrain from emitting the bad ...
...ing a rich cargo — 60,000 ceramic pieces and an array
of gold and silver works — and its discovery has confirmed how significant
trade was along a maritime silk road between Tang Dynasty China and Abbasid Iraq. It also has revealed how China
was mass-producing trade goods even then and customizi...
Astrophysicists working with ground-based detectors at the South Pole and balloon-borne instruments are closing in on such structures, and may report their findings soon.句子中 balloon-borne ground-based 是什么意思？如何理解?
... the extraordinary. And presently Dr. Weitbrecht-Rotholz produced the work which finally set at rest the misgivings of all lovers of art.在brushed aside with impatience a story which disappointed这一块中，1）请老师分析 impatience a story 是什么成分？2）which disappointed......
Say your goal is to run five miles three times a week
and this week you ran one mile on Monday, Wednesday, and Friday.
这里的say的意思是假设，比如说的意思，是一个动词，那么这句话是祈使句吗？this week you ran…并列的是say…还是your goal is…？有人说是...
Then Needham began his lifelong research，______ ended up creating the
greatest work—Science and Civilisation in China为什么不能填写who呢，先行词是人Needham，Needham开始他毕生的研究，Needham最终创造了巨著——中国科学技术史。
The people affect your life，and the successes
and failures you experience.这里的先行词为什么是the successes and failures而不是your life，and the successes
and failures呢，三个明明是并列啊？
I was not the best student when it came to writing tests. I had to work
extra hard to get good marks, although I enjoyed learning. Anyway, this class that I truly enjoyed still had me struggling to do
well on my tests. My teacher willingly helped me and was always willing to
answer my questions, and...
...复发生。如：“他一向都是骑车上班，He has always gone to work by bike;他老是放学后看电视，He has always watch TV after school”。三，用于某一动作、某一持续的动作或状态、某一习惯性动作在过去发生且在过去结束。1 .他已去武汉，He ha...
...下面两个例句Tea (being/ having been) finished, she went go with her work.Arthur (having) gone, he was allowed to make visits like other acquaintances.这两个句子没有doing(括号内是我自己加上去的），这时候being则是指 having been或having，即分词或分词的完成体...
...，我们学习第一课。
3. The ruler came along with a ruler in his hand. 那个统治者手里拿着一把尺子走来了。
4. In the classroom, he asked me a question in
English. 他在教室里用英语问了我一个问题。
5. We learned the last lesson last Monday. 我们上周一学...