| 1 | Once we retreat, it means failure. | |
| 2 | Once he’s happy, the problem will solve itself. | |
| 3 | Once you understand his personality, you will be more decisive. | |
| 4 | Once a mistake is made, it is difficult to turn back even with countless efforts. | |
| 5 | Once the decision is made, we must steadfastly implement it. |