洞；裂缝hole; crack

• 墙上的豁口

  crack in a wall

• 有豁口的碗

  cracked bowl

• 炮弹把墙打了个豁口。

  The shell blew a hole in the wall.

• 堤上出了个豁口。

  A crack appeared in the embankment.

• 泉水从石头豁口流出来。

  Spring water flowed out from a fissure in the rock.