口子2kǒu·zi 1.(山谷、水道等)大的豁口{(of valleys, canals, etc.) large opening; cleft}: 山谷的～上有一座选矿厂。{There's an ore dressing mill at the entrance to the valley.} 2.(人体、物体的表层)破裂的地方{(of human body or the surface of an object) cut tear}: 不小心手上拉(lá)了一个～。{I cut my hand carelessly.}€