The presence of a termite mound in the yard is a cause for concern.

院子里出现白蚁丘是一个令人担忧的问题。

The inside of a termite mound stays at near-constant temperature and humidity, no matter how wet, dry, scorching or freezing it might be outside.

不管外面的天气是潮湿还是干燥，是炙热还是严寒，白蚁巢穴的内部都可以保持恒温恒湿。