成效

1. 只有当演员把台词背得滚瓜烂熟时，我们排戏才会有成效。
   Only when the actors have their lines(down) pat can we practice the play effectively.
2. 无结果的，无成效的不产生商品或有用结果的
   Not productive of a good or useful result.
3. 这所学校保证立见成效。
   The school promised rapid results.
4. 他们提高生产力的措施卓有成效。
   Their efforts to improve the production have been very effective.

成的英语翻译：

效的英语翻译：