mouth

• 从...口中得知

  find out from

• 从你口里说出这种话来，可真怪了。

  It's really strange to hear you say something like this.

• 口出大言

  make bold claims

人口population

• 家口

  number of people in a family

容器的口;出入口opening

• 瓶口

  bottle mouth

• 碗口

  rim of a bowl

• 出口

  exit

• 入口

  entrance

• 山口

  mountain pass

• 火山喷火口

  volcanic vent

• 河口

  river mouth

• 海口

  seaport

• 楼梯口

  stairwell

• 地窖口

  cellar entrance

• 在村口

  at the village entrance

• 站在门口

  stand in the doorway

长城的关口gate; fortified gated checkpoint in the Great Wall where traffic could pass through in ancient times

• 喜峰口

  Xifeng gate

裂口opening caused by damage such as a hole or a crack

• 堵住堤上的口

  fill a crack in the embankment

• 衣服撕了个口儿。

  A hole has been torn in the clothing.

• 伤收口儿了。

  The wound is healing.

刀刃blade

• 刀没口儿。

  The knife's blade is blunt.

枪炮的口muzzle

• 枪口

  gun muzzle

参见：口齿

• 六岁口的马

  six year-old horse

口味taste

管理系统department

• 归口

  return to one's former job

• 农林口

  agriculture and forestry department