Performance is still an issue in many of the applications that I'm interested in: responsiveness of interfaces, start-up and close-down time of applications.

性能在很多应用程序里仍然是我比较感兴趣的一个问题：界面的响应能力，应用系统启动和关闭的时间。

A combination of internal and external factors caused the company to close down.

内外因结合导致了公司的倒闭。

Some small plants are forced to close down.

一些小型工厂被迫倒闭。

On Thursday, the first full trading day in Europe since Dubai’s announcement, the FTSE 100 index in London lost 3.18 percent, to close down 170.68 points.

星期四，自迪拜声明后的第一个欧洲交易日，伦敦的金融指数FTSE 100下跌了3.18个百分点，收盘时下跌170.68点。

The dow Jones industrial average had been up 20 points before he spoke. It fell as much as 160 points during his testimony, but recovered some losses to close down 109 points.

他发表讲话前道琼斯工业平均指数上涨20点，他作证期间道指下跌160点，此后有所反弹，收盘时下跌109点。