您要查找的是不是：
- He ventured on an ambitious project. 他冒险从事一项富有雄心的计画。
- Problems were solved on an ad hoc basis. 做了一些变通问题便解决了。
- In such cases he would put on an aggrieved look. 在这样的时候，他就会装出一副可怜相。
- He bought the house on an impulse. 他凭一时冲动买下了这所房子。
- The amount of a claim on an insurer by an insured. 险损赔偿额保险人从承保人获得的赔偿数量
- They embarked on an orgy of sightseeing. 他们开始尽情地观光游览。
- The book ended on an optimistic note. 该书的结尾寓意乐观。
- That was a scurvy trick to play on an old lady. 用那样的花招欺负一个老太太，可真卑鄙。
- Soon the truck come into sight around a bend and on an upgrade. 不一会卡车就出现在一个拐弯和上坡处。
- It's not good to drink on an empty stomach. 空腹喝酒不好。
- We've taken a lease on an office building. 我们已租了一幢办公楼。
- An area of choppy water, as on an ocean. 碎浪区海洋等有碎浪的区域
- Let's pretend that we're on an island. 让我们装作在一孤岛上。
- Mr Smith launched out on an enterprise. 史密斯先生精力充沛地创办一个企业。
- My uncle bought the house on an impulse. 我叔叔一时冲动买下了那房子。
- The technician had on an antiseptic white jacket. 那个技术员穿著消毒白色夹克。
- Women are now on an equality with men. 现在男女平等。
- This medicine must be taken on an empty stomach. 这种药必须空腹服用。
- Nothing can justify your cheating on an exam. 任何事情都不能成为你考试作弊的理由。
- Does the earth rotate on an axis? 地球是绕轴旋转的吗？
