| 1. | She rose and took a tentative step backward . 她起身试探着退了一步。 |
| 2. | The cycloaddition itself is the slow step . 环化作用本身是慢的一步。 |
| 3. | She had wormed from him his secret . 她从他那儿一步步探出了他的秘密。 |
| 4. | Each new step is bought with disappointments . 每前进一步都伴随着失望。 |
| 5. | Slowly, steadily, it ascended the slope . 它慢吞吞的,一步步的走上坡来。 |
| 6. | This was indeed an extraordinary step . 这也确实是了不起的一步。 |
| 7. | He tore up the stairs two steps at a time . 他一步两个台阶地飞奔跑上楼。 |
| 8. | I won't venture a step farther . 我没勇气(不想)再上前一步了。 |
| 9. | Each step can be duplicated in laboratory . 每一步都可在实验室中进行验证。 |
| 10. | We have made a step towards success . 我们已向成功迈进一步。 |