Moreover, it had to be borne in mind that the hugest whales, those
found near the Aleutian, Kulammak, and UmgullichIslands,
have never been longer than 180 feet, if
that.
if that 是什么结构？
TheUSlooks like a Wild West for personal data. Information gathered by companies — most prominently Google and Facebook — trades at lightning speed on advertising markets that most users do not even know exist. 原文第一段http://m.kekenet.com/read/201705/507695.shtml 这句话最后，exist...
需要讨论的句子：The dress is buttoned on the right side, with a loose chest, a fitting
waist, and slits up from the side, all of which combine to set off the beauty
of the female shape.这里的不定式to set off是否是目的状语？我认为原句中的combine是个静态动词，这里...
Trump said in December he would be "proud" to shut the government down over the border wall and last week told lawmakers it could last months.请问老师这句话的over感觉有表达因......的意味吗？这个over怪怪的，介词好像里没相关的意思,谢谢。
A prize will be given to whoever solves the riddle.whoever 在这里等于 any person 还是the person？ 同理Send it to whoever is in charge of sales.我个人觉得这2个句子里都是any person
Even if he himself tomoIrow, it too late to do anything. A.will come...is B.should come...were C.comes...will beD.comes...would be请问为什么选c呢，还有为什么是comes不是will come呢
In
broad terms, the heritability of a trait measures the extent to which
differences among members of a population can be explained by differences in
their genetics.可以帮忙翻译一下吗，特别是哪个the extent to which 到底表示了什么意思？
Thus, by the Devonian the land habitat marginal to freshwater was
probably a rich source of protein that could be exploited by an animal that
could easily climb out of water. 请问老师marginal to怎么理解，to表示什么意思？