重點講解：
1. refer to
指的是；
eg. It can also refer to a conflict or disagreement, often involving violence.
這個詞還可指沖突或不和，常涉及暴力行動5JW*BEORE6&a(。
eg. Twin deficits refer to budget deficit and trade deficit.
雙赤字指預算赤字和外貿赤字|6-ZO4b&=5。
2. as well as
除…之外；也；還；
eg. You must deposit 500 as well as the first month's rent.
你必須付500英鎊押金及第一個月的租賃費Mb7J~oMLVt^j-F&55。
eg. The child is lively as well as healthy.
這孩子既健康又活潑cDxo-!C,N)gT*1N;。
3. account for
（數量或比例上）占；
eg. Repeat order account for much of our business.
續訂貨占了我們生意的很大部分@vIxHga;Ys2Ckq6*ia。
eg. Petrochemicals today account for one fourth of all the chemicals made, in ten years this amount is expected to double.
石油化工產品現在已占所有化學制品的四分之一，十年后預計這個數目還要加倍cq%hli;tl1(0n。