B：Well, you should have put details of your market research spending and the interest you will have to pay on the bank loan.A：Great thinking, Sally. I forgot those important items.对话A里的forgot，这里为什么用过去时态，而不是用一般现在时态？
But with AI, computers learn to find cancers based on the actual results of thousands of mammograms. 1. based on the actual results of thousands of mammograms 是状语还是后置定语？2. 分词作状语必须与主句用逗号隔开吗？
According to the author, the burning issue concerning immigrations is how to help immigrants to better fit into American society. 在这里concerning是介词吗，然后介词短语做定语？还有这样的词吗？concerned 可以这样用吗？
The tax penalty can be imposed on the use of some disposable products,including plastic bags,thereby encouraging people to use eco-friendly alternatives.我想问下，这两处分词的逻辑主语分别是什么，是做状语还是同位语.望老师指点！
...这一点与a lot of 相同，即遵循意义一致原则。例如：There is only a small quantity of wine left. Great quantities of sand was washed down the hillside by the rain last night.A large quantity of air conditions have been sold since the summer came. Huge quantities of oi...
...astonishing drubbing handed out to her Christian Democratic Union (CDU) in the prosperous state of Hesse, she announced that she will step down as leader of the party in December中文：10月29日，在繁荣的黑森州，德国基督教民主联盟（以下简称“基民盟”）于地区议会...
a surface of which one end or side is at a higher level than another; a rising or falling surface这是关于词典Oxford dictionary of English 2nd 关于名词 slope的定义。我看不懂的地方在of which 这里，以我浅显的语法能力判断 of which应该相当于 whose做连接词引...
A：I’d like to
join the library. We’re new to the district you see.B：Certainly.
Well all we need is some sort of identification with your name and address on
it.A：Oh dear. We
just moved, you see, and everything has my old address.B：A driving
licence, perhaps?A：No, I don’t
drive.B：Wh...
...courages everyone to have a say. “My parents were on the ‘before’ side of that change, but today’s parents, the 40-year-olds, were on the ‘after’ side,” explains Mr. Ballmer.这两个句子选自2008年高考英语广东卷的一篇阅读理解，怎么翻译好呢...
...，存在类似一个工程的问题，如何无光时寻找猎物。Given the questions of how to manoeuvre in the dark, what solutions might an engineer consider? The first one that might occur to him is to manufacture light, to use a lantern or a searchlight.这里的to use a lantern or a searchl...
...来的短语动词，占短语动词的大部分。
以take up为例：
The manager took up the telephone
receiver and rang up the Ministry of Foreign Trade. (拿起，字面意义）
What is your brother taking up
in college?（学，成语意义）
这是否说明原来的定义不是很完善...