...释义分别为：electric: connected with electricity; using, produced by or producing electricity. electrical:connected with electricity; using or producing electricity。释义非常接近，而电系统，我理解为：connected with electricity.
1）My car is bigger than yours.2) A chimp has as much I.Q. as a child of five or six does.第1）句中，yours后面没有is，只有my car和yours对称。那么2）句中的does是否可以省略呢？将chimp和a child of five or six对称。
...ery
morning for four hours, enjoying little else
than air and exercise. At about nine or ten o’clock they begin their march
homeward; and nothing can form a greater contrast than their entry into their
native town does
to their exit from it. Their eager anxiety to get to the dinner trough that awa...
Our Great Larry Kudlow, who has been working so hard on trade and the economy, has just suffered a heart attack. He is now in Walter Reed Medical Center.这是特朗普最新的推特，译文是：我们伟大的拉里·库德洛，一直在贸易和经济方面工作努力工作，他刚刚...
The CDs are _______! Buy one and you get one completely free. A. on sale B. for sale C. in sale D. with sale 选项 C 和D 比较好排除，但分不清是 on sale 还是 for sale，求讲解！谢谢！
Whether children should be taught to complete or to cooperate 为什么有两个to?如题，名词性从句whether的用法好像常见的是 whether to do A or B但是在雅思作文中看到这个用法，为什么有两个to呢？第一次发问如有不妥老师们见谅
填空题：
On the one hand, I always get up too late and have too little time to have breakfast. On the other hand, I hate going to work ________ an empty stomach.
所给答案是on，但是可以填with吗？
...es. Mainframe computers were very large
indeed, often occupying whole air-conditioned rooms, employing full-time
technicians and run on specially-written software.1）书上说这里的现在分词occupying，employing 和过去分词run都是修饰主语mainframe
machines的，这种说法对吗？...