| 1. | He spoke to the class about the dangers of smoking .
他对班上学生讲了吸烟的危害性。 |
| 2. | Men of good will had preached the perils of the arms race for many years .
多年来，具有善良愿望的人们一直在宣传军备竞赛的危害性。 |
| 3. | Transformation of an organic toxicant does not always result in formation of a less objectionable compound .
一种有机毒物不总是转化为危害性更小的化合物。 |
| 4. | The engineer in charge of design should be aware of this hazard and should build into the unit the necessary safety features to counter it .
负责设计的人员必须注意到这种危害性，应当在装置中添加安全措施，用以清除这种危害。 |
| 5. | He spoke to the class about the dangers of smoking
他给班上学生讲了吸烟的危害性。 |
| 6. | He speaks to the class about the danger of smoking
他给班上学生讲了吸烟的危害性。 |
| 7. | On japan ' s history textbooks and their perniciousness
论日本历史教科书问题及其危害性 |
| 8. | Second , the damage of accountant information distortion
(二)会计信息失真的危害性。 |
| 9. | Assessment procedure and determination of pollution category
危害性评价程序与污染分类方法 |
| 10. | Discussing on the harmfulness of tractor overload and overspeed
谈拖拉机超载和超速的危害性 |
