Trachea
例子
Coughing helps to clear the trachea of mucus and foreign particles, keeping the airway clear for breathing.
咳嗽有助于清除气管中的粘液和异物，保持呼吸道畅通以呼吸。
02
a fine respiratory tube that delivers air directly to the tissues in insects and many arachnids
例子
The spider 's trachea branch extensively into fine tubes.
