| 口形 degree of lip-rounding |
| 口形握把 spade grip |
| 口径 bore |
| 口径不合 not meet the requirements st... |
| 口径天线 aperture antenna |
| 口径照射效率 aperture-illumination effici... |
| 口径阻挡 aperture blockage |
| 口心如一 What one says is indeed what... |
| 口快心直 blunt,outspoken,but honest |
| 口惠 lip service |
| 口惠无实 support shown by words only ... |
| 口才 eloquence |
| 口技 oral stunts |
| 口拙 slow of speech |
| 口授 oral instruction |
| 口授打字机 phonetic typewriter |
| 口授法 the method of passing on ora... |
| 口授笔录 One gives verbal instruction... |
| 口授遗嘱 oral testament |
| 口是心非 say yes and mean no |
| 口服 take medicine orally |
| 口服心不服 pretend to be convinced |
| 口服法 oral medication |
| 口服避孕丸 pill |
| 口条 pig's or ox's tongue |
