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 。