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▲get on 登上；應(yīng)付；過日子
The bus came and we got on. 公共汽車來了，我們就上了車。
I am afraid I didn’t get on very well in the exam. 我這次考試恐怕不太順利。
▲hit on [upon] 忽然想到，想出
She hit on a marvelous idea. 她忽然想到一個妙主意。
At last we hit upon a way of dealing with this problem. 最終我們想出了一個辦法來解決這一問題。
▲improve on [upon] 對……作出改進，比……更好
I am unable to improve on his suggestion. 我提不出比他更好的建議了。
I think the film improved upon the book. 依我看，這部電影比原著好一點。
▲knock at [on] 敲（門、窗）
Someone is knocking at the window. 有人在敲窗。
New graduates from high schools and colleges start knocking on employers’ doors. 剛從大中學(xué)校畢業(yè)的學(xué)生開始尋找就業(yè)門路。
▲lean on 靠在；對施加壓力；依靠
She had to stop and lean on the gate. 她不得不停下來，靠在大門上歇歇。
They lean on each other for support. 他們相互依靠，相互支持。
If we lean on them, we’re bound to get something. 如果我們對他們施加壓力，一定能得到點什么。
▲live on [upon] 靠……為生，依靠……生活
She still lives on her parents. 她仍靠父母生活。
The family lived upon a small income. 這家人靠少量收入過活。
▲rely on [upon] 依靠，指望
She cannot be relied on to tell the truth. 別指望她能說真話。
Nowadays we rely increasingly on computers for help. 現(xiàn)今我們越來越依靠計算機協(xié)助工作。
▲rest on [upon] 基于，（目光）落在……上
The whole theory rests on a very simple idea. 整個理論基于一個很簡單的概念。
His eyes rested upon the new sofa. 他的雙眼凝視著那張新沙發(fā)。
▲sit on 丟下不管，積壓：
Don’t sit on letters requesting our help. 不要積壓向我們求助的信函。
They have been sitting on my application for weeks. 他們把我的申請擱置了好幾個星期。
▲work on 對……有影響；從事，致力于
Will it work on human beings? 這將對人有影響嗎？
He is working on a new novel. 他正在寫一部新小說。
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