有这样一个句子，句中的sleep rough 被翻译成“露宿街头”，它是这个意思吗？There are thousands like him in Los Angeles, begging on the streets and sleeping rough. 洛杉矶有数以千计像他这样的人，沿街乞讨，露宿街头。
The river and the nutrients it brings also support the world’s biggest inland fishery, accounting for a quarter of the global freshwater catch, feeding tens of millions of people.各位老师能否给分析一下这个句子的结构，accounting for 是什么成分，谢谢！
If we are successful, in one great step our two nations will have been able to ease one of the greatest sources of tension in international affairs: that between the developed and developing worlds.
Great as Newton was,many of his ideas ______ till todayand are being modified by the work of scientists of our times.A. are to challenge B. may be challenged C. have been challenged D. are challenging老师，till是不是现在完成时的时间标志啊? 这道题怎么翻译啊？为什么...
Suppose you were head of a major soft-drinks company and you want to break into a certain overseas market where the growth potential for your company is likely to be very great indeed.head of 是某个单位的头头，怎么不加冠词呢，是固定用法吗？
...quot;No," she'd said. " I'm charged to the hilt already, and I don't want to risk being refused.译文：“不行”她说：“我已经赊欠到最高限额了。我不想冒这个险，被人拒绝”。be charged 是被动语态吗？什么意思，表示被赊欠吗？cha...
And there I was, also preparing to get off at the Atlantic Avenue, with nothing to take care of —not even the usual customary book under my arm.破折号后面的是补充说明的意思吗？是不是可以这么理解：he did not take care of even the usual customary book unde...
These little pigs now have a caring tiger mommy to look after them, and the mother tiger has a way to share her love.这里的look after 的after应该是介词吗，如果是副词them就会放中央了，可是字典上look afer的搭配中look是及物动词，有点疑惑!
...ticular, is becoming homogenized, with even natives of the Pacific,Arctic, and Subarctic regions consuming more in the way of the kindsof prepared foods that are eaten by everybody else in the West,unfortunately to their detriment.with even natives of the Pacific,Arctic....else in the West 是什么...
...gs are like wild animals, which rip their own kin in the slightest of need and that too without a sign of remorse.①这里that语义上应该是指代human beings对吗？可是不应该用those吗？②就算是用了those，too的作用又是什么呢？中间省略了什么呢？感谢各位老...
刘老师，打扰了，上次的破折号那个问题我还是有一个疑问:And even more — 75% — said they've sometimes said they weren’t afraid when they really were.您说even more与75%是同位关系，这个我听明白了，请问后面那个破折号是干嘛用的？
这是《现代大学英语精读1》第四单元Text A的句子:Night after night have I sung of him,though I knew him not and now I see him.虽然之前并未见到，但我夜复一夜地歌唱有情人，现在我总算见到他了。这里know sb not 是know 的词汇用法还是句法？
To do CPR(心肺复苏), you press on the sick person’s chest so that blood moves through the body and takes oxygen to organs.这是 2017 年高考英语北京卷阅读 A 中的句子，这里的不定式 to do CPR 是时间状语吗？感觉不能分析为目的状语或条件状语吧！