我们在院子里发现了白蚁的巢穴，它们正在啃食木栅栏。

We found a termite nest in the yard, and they were eating the wooden fence.

termite 由词根 termit-（白蚁）和后缀 -e 组成，指一种以木材为食的小型昆虫，俗称"白蚁"。termite nest 指白蚁群体建造的巢穴结构。