经济学人下载:艾滋病—勿忘(1)

1.drop out of 从...中退出
The skate-board caught on for a few months, but then dropped out of fashion.
滑冰板风行了几个月，但又不流行了。
2.roll out推出
On this basis the company rolled out their own products.
在此基础上我公司陆续推出自己的产品。
3.sustained持续的
The north cannot achieve sustained economic development without the south, he added in his closing remarks.
在结束语中他补充说，没有南方，北方就无法实现经济上的可持续发展。
4.suppress 抑制
The reproduction and growth of the cancerous cells can be suppressed by bombarding them with radiation.
可以通过放疗杀死癌细胞来抑制其再生和扩散。