| 1. | The child 's work at school is about average .. 这孩子学习成绩中常。 |
| 2. | When one is about to act, one must reason first . 凡事应先思而后行。 |
| 3. | A typical run-up time is about 20 seconds . 典型起转时间是20秒左右。 |
| 4. | I should suppose him to be about fifty . 我可也猜他是五十岁左右。 |
| 5. | His new product is about to be published . 他的新作品马上就要出版。 |
| 6. | This book is about chemicals and plants . 本书所写的是化学药剂和植物。 |
| 7. | Nuclei are about as large as a "barn" . 原子核大约是一个“靶”那么大。 |
| 8. | He fears that he is about to have a heart attack . 他害怕心脏病要发作。 |
| 9. | The budgerigars are about on her level . 那些小鹦鹉同她倒差不多。 |
| 10. | She is about as tall as her mother now . 她都赶上她妈妈的个子了。 |