| 牢 | cattle pen |
| prison | |
| 牢固 | firm;secure |
| 牢记 | remember well |
| 牢牢 | firmly;safely |
| 牢骚 | grumbling |
| 牢狱 | prison;jail |
| 坐牢 | be in prison |
| 牢 | cattle pen |
| prison | |
| 牢固 | firm;secure |
| 牢记 | remember well |
| 牢牢 | firmly;safely |
| 牢骚 | grumbling |
| 牢狱 | prison;jail |
| 坐牢 | be in prison |
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