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It takes me 5 yuan to buy this watch.
The watch costs me 5 yuan.
Unit 9
Text A
重点词语
classify v. 1. 把…分类，把…分等级；2. 把…列为
Biologists classify animals and plants into groups.
liability n. 1. 责任，义务；2. (pl)债务，负债；3. 不利条件，妨碍的人或物
Your employers liability does not cover accidents that you have on your way to work.
alter v. 改变，改动
The waiter apologized and altered the figure on the bill.
lengthen v. 使延长；变长，延伸
The queue outside the shop was lengthening.
revision n. 修订，修改
He was forced to make several revisions to his speech.
难句分析
1. of the really ancient societies, with over 13 per cent above 65, all are in Northwestern Europe.
