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- They began to feel worried when they kept hitting net balls. 他们一直打落网球，便开始着急了。
- I keep hitting net balls. 我不断地打落网球。
- They began to feel worried when they kept hitting net-balls. 他们一直打落网球，便开始着急了。
- They keep hitting net-balls. 他们一直打落网球。
- You need to keep hitting the ball on the volley. 在来回截击时，你需要不断地打球。
- Robert hit a net ball just as Tom was winning. 罗伯特打了个落网球，等于说汤姆就要赢了。
- For one thing they keep the water clean. 一方面，他们可以保持水的清洁。
- That low beam is a menace! I keep hitting my head on it. 那条低梁真危险! 老磕我的头。
- They keep hens in a lean-to at the end of the garden. 他们在园子尽头处的单坡棚里养母鸡。
- I can't smooth these folds away, they keep coming back. 我烫不平的这些皱，他们老是起来。
- A common fault is a net ball,or net fault. 常犯的失误是发落网球，或发球失误。
- They keep to the custom of having their marriages only in May. 他们固守传统，只在五月举行婚礼。
- They kept badgering him to get a home computer. 他们一直纠缠着要他买一台电脑。
- Net ball is a very common fault. 落网球是非常常见的失误。
- Although they lost interest in the project, they kept the ball rolling. 他们虽然对这项工程不感兴趣，但是仍继续干下去。
- They keep rolling out these new types of camera. 他们持续生产出大量新型的照相机。
- That low beam is a menace! I keep hit my head on it. 那条低梁真危险！老磕我的头。
- They kept their ancestral customs. 他们保持了祖辈的习俗。
- If you play a net ball on your serve,that is called a let. 若你发球触网但已进入对方正确发球时就叫“。
- They kept a small hotel in the town. 他们在城里开了一家小旅店。
