| 1 | The government needs to pay attention to people's livelihood and serve the people. | |
| 2 | Don't always think of others, also think about yourself. | |
| 3 | This documentary showcases an unknown history. | |
| 4 | Stem cells have the ability to develop into cells of various organs in the human body. | |
| 5 | The Internet has become an indispensable part of people's lives. |
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