| NO. | WORD | POS | EHOWNET |
| 1 | 苦役 | Nac | {affairs|事務:qualification={difficult|難}} |
| 2 | 苦辛 | Nad | {affairs|事務:qualification={difficult|難}} |
| 3 | 苦事 | Nac | {affairs|事務:qualification={difficult|難}} |
| 4 | 苦差事 | Nac | {affairs|事務:qualification={difficult|難}} |
| 5 | 重負 | Nad | {affairs|事務:qualification={difficult|難}} |
| 6 | 重擔 | Nac | {affairs|事務:qualification={difficult|難}} |
| 7 | 無頭公案 | Nac | {affairs|事務:domain={police|警},qualification={difficult|難:theme={judge|裁定}}} |
| 8 | 無頭案 | Nac | {affairs|事務:domain={police|警},qualification={difficult|難:theme={judge|裁定}}} |
| 9 | 硬戰 | Nac | {affairs|事務:CoEvent={打仗|battle},qualification={difficult|難}} |
| 10 | 疑案 | Nac | {affairs|事務:domain={police|警},qualification={difficult|難:theme={judge|裁定}}} |
| 11 | 燙手山芋 | Nab | {affairs|事務:qualification={difficult|難}} |