narrow opening

• 窄巷道

narrow opening的用法和样例：

例句

1. A long, narrow opening; a crack or cleft.
   裂缝，裂隙长而狭的开口; 裂缝或裂痕
2. A narrow opening, such as a crack or fissure.
   裂缝如裂缝或缝隙之类狭窄的裂口