口凿

例句：

1. 1. The cave was too narrow for me to fit through, so I had to use my hands to dig a way out.
   洞穴太窄了，我无法通过，所以我用手挖了一条出路。
2. 2. He bit his lip and chewed on it, trying to suppress his anger.
   他咬住嘴唇，嚼着它，试图抑制他的愤怒。
3. 3. She spoke loudly, her voice echoing through the room.
   她大声说话，声音在房间里回荡。