To work, act or function.

运作；转动。

To produce a certain effect.

生效；见效。

To perform a surgical action upon the body.

动手术。

The carry on a military or naval action or mission.

作军事行动。

(Of a stockbroker) buy and sell, esp. in order to influence prices.

买卖股票以左右市场价格。

To cause to perform certain work.

操作；使运转。

To manage; direct; conduct.

管理；指导；经营。