| 1 | We should consume rationally and avoid waste. | |
| 2 | Rational decision-making requires calm thinking and objective analysis. | |
| 3 | When arguing, don't lose your temper, and try not to say hurtful things. | |
| 4 | As he grows older, he becomes more mature and sensible. | |
| 5 | This couple never quarrels because they are both rational. |