That can save money over ground based launches.

这比地面发射省钱。

Well, I probably won't spill coffee grounds all over the kitchen floor.

我大概不会把咖啡粉洒了一地。

Dig the ground over in the autumn.

【ground】秋天的时候把土翻过来。

The route was now painful; lying over ground ragged with rocks, and intersected with ravines, and their progress proportionately slow.

这条路现在很痛苦； 躺在布满岩石的地面上， 与沟壑相交， 他们的前进速度相应地缓慢。

Mrs. Traynor, with her diplomat's good manners, was delightful to Margot, and they found common ground over the history of the building and of New York in general.

特雷纳夫人以她外交官的彬彬有礼使玛戈特愉快，他们在这座建筑和整个纽约的历史上找到了共同点。