| 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. | He spoke to the class about the dangers of smoking 他给班上学生讲了吸烟的危害性。 |
| 3. | He speaks to the class about the danger of smoking 他给班上学生讲了吸烟的危害性。 |
| 4. | Children must be warned about the dangers of smoking 应当告诫儿童不要吸烟。 |
| 5. | The doctor gave an illustration of the dangers of smoking 医生举例说明抽烟的危险 |
| 6. | The doctor alerted me to the dangers of smoking 医生警告我注意吸烟的危险。 |
| 7. | We are trying to warn children the dangers of smoking 我们正试图警告孩子们吸烟的危害。 |
| 8. | The danger of smoking after a meal is 10 times greater than usual 饭后吸烟的危害比平时大10倍。 |
| 9. | If i were you , i ' d also talk to your friend about the dangers of smoking 假如我是你,我也会跟你朋友谈吸烟的危害。 |
| 10. | 60 if i were you , i ' d also talk to your friend about the dangers of smoking 假如我是你,我也会跟你朋友谈吸烟的危害。 |