常見例句An opening, especially to a cavity or passage of the body; a mouth or vent.通氣口一個(gè)開口，特別是身躰上的洞口或通路; 嘴或者通氣口I have a toothache because there is a cavity in one of my teeth.我牙疼，因爲(wèi)我的一顆牙齒上有個(gè)洞。 返回 cavitis