| 國語 | cmn-001 |
| 秘密地 | |
| 普通话 | cmn-000 | 暗中地 |
| 普通话 | cmn-000 | 秘密地 |
| 國語 | cmn-001 | 暗中地 |
| Hànyǔ | cmn-003 | mi4 mi4 de5 |
| Deutsch | deu-000 | durch List |
| English | eng-000 | behind closed doors |
| English | eng-000 | behind sb.’s back |
| English | eng-000 | between ourselves |
| English | eng-000 | clandestinely |
| English | eng-000 | on the sly |
| Nederlands | nld-000 | clandestien |
| Nederlands | nld-000 | ongeoorloofd |
| Nederlands | nld-000 | onwettig |