1. We each threw two darts at the target.
    我们每人向靶子投两个镖。

2. We derived knowledge from practice.
    我们从实践中得到知识。

3. With practice, no doubt, I could in time learn to write by holding the pen still while the paper moved.
    毫无疑问，经过练习，我最终能够学会笔不动而纸动来写字。

4. We were going up for a practice battle.
    我们要飞入空中做实战演习。

5. The heavier the arrow, the greater its penetration into the target.
    箭越重, 射入靶子越深。

6. They give us valuable practice in helping the eyes, brain and muscles to work together.
    它们在使眼睛, 头脑和肌肉协同动作方面提供宝贵的锻炼机会.

7. The heavier the arrow, the greater its penetration into the target.
    箭越重, 射入靶子越深。

8. They set a target for production.
    他们为生产制定了一个指标。

9. This plan looks all right in principle, but in practice it wouldn´t be viable.
    这个计划原则上没问题，可是事实上却无法成立。

10. The Ombudsman´s prompt action at once put an end to an unpleasant practice which might have gone unnoticed.
    司法特派员及时采取的行动，迅速制止了这一起不愉快的事件，不然这件事可能因未得到人们注意而不了了之。