Spelaean
a. 洞穴的, 洞穴状的, 穴居的
🗣️ 情景例句
OK.
好的。
An inch in a miss is as good as an ell.
错无分大小，有错皆不好。
The basic features include a crest (the highest point of the wave),
它们的基本特征包括浪峰（波浪的最高点）