| 1. | She was busily engaged in the little offices of the table . 她正在餐桌上忙于做一些小事情。 |
| 2. | He was kept busy doing his maths exercises all day 他整天都在忙于做数学作业。 |
| 3. | He busied himself with all kinds of little tasks 他忙于做各种小事。 |
| 4. | The scientist is busy making the experiment 那科学家正忙于做实验。 |
| 5. | He ' s a forty - two - year - old confirmed bachelor 他戏言自己忙于做一个单身父亲而没有时间再做丈夫。 |
| 6. | I was tied up with some new projects 我忙于做一些新计划。 |
| 7. | I was tied up doing some errands 我忙于做一些差事。 |
| 8. | He is busy doing housework 他忙于做家务。 |
| 9. | Be busy with doing sth 忙于做某事 |
| 10. | Be busy doing sth 忙于做某事 |