In the reserves of Zimbabwe and South Africa, annual culls are already routine.在津巴布韦和南非的自然保护区，每年的选择性捕杀已成惯例。Big business culls the brightest from among college graduates.大企业从大学毕业生中选拔最优秀的人材....
Brass is an alloy of copper and zinc.黄铜是铜锌合金。The worker worked in a little copper with the alloy.工人在合金里搀了一点铜.This is not pure gold ; there is some alloy in it.这不是纯金, 里面混有杂质....
Make a point of backing up your files at regular intervals.一定要定期备份文件。The Chinese make a point of their personal honor.中国人特别重视个人荣誉.I want to make a point about all these charges going up, water rates and all this that and...
He attended Eton, the most exclusive private school in Britain.他上的是伊顿公学，英国最昂贵的私立学校。Where will he go to school now he's been thrown out of Eton? What will become of him?现在他被伊顿公学开除了，他去哪儿上学呢？他将来又会怎样呢？...a stellar educa...