| 1. | If you roll a ball up a slop , it will roll down again .
它还会滚下来。 |
| 2. | A ball came hurtling towards her face .
一个球劈脸向她打来。 |
| 3. | Mr. ryder was going to give a ball .
赖德先生打算开个舞会。 |
| 4. | A ball is projected directly toward a second ball .
一个球正对着第二个球发射。 |
| 5. | The threads are wound into a ball .
线已经绕成球了。 |
| 6. | A ball bearing had bounced off the submarine's hull .
潜艇船身上崩掉了一个滚珠轴承。 |
| 7. | She rolled the string into a ball .
她把线卷成一团。 |
| 8. | She wound wool into a ball .
她把毛线绕成一团。 |
| 9. | The mixture is homogenized in a ball mill for 15 minutes .
混合物在球磨机中均化混合15分钟。 |
| 10. | I feel like having a ball .
我觉得很开心。 |
