| 1. | You must study hard .
你非努力学习不可。 |
| 2. | You must study hard and make progress every day
你们一定要好好学习，天天向上。 |
| 3. | If you want to study well , you must study hard
如果你想学习好，你就要努力学习。 |
| 4. | You must study hard for the benefit of your own
为了你自己的利益你必须努力学习 |
| 5. | You must study hard for the benefit of your own
为了你自己的利益你必须努力学习。 |
| 6. | You must study hard if you intend to follow the law
如果你想当律师,就得努力学习。 |
| 7. | If your engiish is bad , you must study hard
英语不好,就更要努力学习嘛 |
| 8. | Your parents are very pity , you must study hard for your parents
你的父母不容易，可要好好学习为他们争光啊。 |
| 9. | You must study hard . = study hard
你必须用功读书。 |
| 10. | You must study harder ( or ) else you ' ll fail in the english examination
你必须努力学习,不然的话,英语考试不会及格的。 |
