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1、expand
扩充;扩大;增加
Engineers noticed that the pipes were not expanding as expected.
工程师注意到管道并没有如预期那样膨胀。
The money supply expanded by 14.6 per cent in the year to September.
截至9月，当年的货币供应增加了14.6％。
扩大；发展；扩展
The popular ceramics industry expanded towards the middle of the 19th century.
到19世纪中期，大众制陶业得到了发展。
The interest rate's coming down. I'll be able to expand or stay in business.
利率正在降低，我可以扩大公司或者维持经营。
2、introduce
引进;首次引入;推行
The Government has introduced a number of other money-saving moves.
政府已经采取了其他一些省钱的举措。
I kept the birds indoors all winter and introduced them into an aviary the following June.
整个冬天我把鸟关在室内,然后在接下来的6月份把它们放入鸟类饲养场饲养。
介绍;引荐;使相互认识
Tim, may I introduce you to my uncle's secretary, Mary Waller?
蒂姆,我来介绍一下，这位是我叔叔的秘书玛丽·沃勒。
Someone introduced us and I sat next to him.
有人给我们作了介绍,我挨着他坐下了。
为(电视或广播节目)做开场白;主持
'Health Matters' is introduced by Dick Oliver on BBC World Service.
英国广播公司对外广播频道的“健康动态”节目由迪克·奥利弗主持。
