1.  mouth
2.  opening

• 1. 口: Port | mouth | decent | orifice
• 2. 人口: Population | Population. via: https://en. | Human population | in
• 3. 港口: harbour | harbor | Ports of Call Deluxe

更多释义

• 1.他（一口一口地）吸着烟斗。
  He puffed (away) on his pipe.
  dict.yoduao.com
• 2.他咂了口烟，然后吐出烟雾。
  He took a drag on his cigarette, and exhaled the smoke.
  dict.yoduao.com
• 3.他细嚼慢咽地吃着饭，一口一口地品味。
  He ate his meal slowly, savouring every mouthful.
  dict.yoduao.com

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