| 活 |
huó kǒu | sb who witnesses a crime and is not killed by the perpetrator / a captive who can provide information |
| 活 |
huó | to live / alive / living / work / workmanship |
| 口 |
kǒu | mouth / classifier for things with mouths (people, domestic animals, cannons, wells etc) / classifier for bites or mouthfuls |