Spelaean
a. 洞穴的, 洞穴状的, 穴居的
🗣️ 情景例句
Sorry to be a pest.
不好意思打扰你。
In for a penny, in for a pound.
一不做，二不休。
Some of the things were hundreds of years old.
展出的一些东西已有数百年的历史了。