问题之一：I sit down, sign up for all my classes, get into them, and I'm happy.我的疑问：sign 是不及物动词为什么不直接用 sign for, 而一定要加上副词 up 呢？问题之二：And it remains to be seen whether large numbers of younger, healthier Americans will sign up ...
....It sounds like a useful,ground-clearing way to start.Actually,it isn't,because it assumes that there is an agreed account of human rights, which is something the world does&nb...
...ums is mistaken.Even people who take no interest in art cannot have failed to notice examples of modern sculpture on display in public places.1.这里不是对现在事实的一个陈述吗，为什么用cannot have failed，难道想表达“之前一定注意到过?”2.怎么感觉有种现在完...
...cle/201810/568243.shtml英文：The rebellion that would follow an attempt to remove jobs-based health insurance from the 55% of Americans who have it, putting medical-insurance companies out of business in the process, would make the politics of Obamacare look like a church picnic.中文：在此...
T：How much money does the First Step Fund still have to invest?A：About $1.75 million, which goes quite a long way at $50,000. We have 55 portfolio companies. We’ve had two exits when companies got sold and a number of loan payoffs.
According to their latest paper published in Nature, the biomass of large predators (animals that kill and eat other animals) in a news fishery is reduced on average by 80% within 15 years of the start of exploitation.红色部分的15年 “指的是开采的开始这一整个阶段一共15年” ...
...时又见到 the heavy rain。如：In spite of the heavy rain, she went to the shop. 尽管雨很大，她还是去商店了。From the look of the sky we shall have heavy rain this afternoon. 从天空的模样来判断，今天下午会下大雨。类似的，还有 heavy snow与the heavy snow等...
There exists a social and cultural disconnect between journalists and their readers, which helps explain why the “standard templates” of the news room seem alien to many readers.请问：(1) which 的先行词是 disconnect 还是前面整个句子的意思？(2) room 为什么不是用复数？
...的句子：1. Surely there exists some clever Silicon Valley counsel to twist the wording of the precedent. 2. Although DSGE models are also based on microeconomic foundations, they accept the traditional view that there exists some ideal equilibrium towards which all prices are drawn. ...
...echnically means it's not a "spokes" anything -- won tickets to grin deliriously during the four-hour trip between the island's north and southeast.【这句话是接在 http://ask.yygrammar.com/q-7587.html 后面的】请问：it's not a "spokes" anything...
It is the north of the country, where the lands rise toward the Himalayas, that perhaps has the greatest potential as a vast, protected landscape. Much of this part of the country is essentially unexplored - at least by biologists - and it is here where there are undoubtedly lots of discoveries to b...
Isn't that the way it is when we take the time and make the effort to do something for someone else?请问：(1) Isn't that the way it is 是什么意思？that 和 it 分别指代什么？(2) When引导的从句应该是后置了，它引导的是主语从句吗？