| 代 | dài | to substitute; to act on behalf of others; to replace; generation; dynasty; age; period; (historical) era; (geological) eon |
| 充 | chōng | to fill; to satisfy; to fulfill; to act in place of; substitute; sufficient; full |
| 如何 | rú hé | how; what way; what |
| 搜 | sōu | to search |