cave/keɪv/

n. a large hole in the side of a mountain or under the ground

n. [C] 洞穴；山洞：The cave is 2,300 feet deep. 这个洞穴有2,300英尺深。

◇the mouth/entrance of the cave 洞口

音组-ave/-eɪv/

behave; brave; cave; save; shave; slave; wave