Ants seal their holes
It's a Chinese word. Its pinyin is y ǐ f ē ngxu é y ǔ, which means that ants gather at the entrance of the cave. It's a sign of heavy rain. From Yi Lin.
The origin of Idioms
Jiao Yanshou's Yilin of the Han Dynasty, Volume 13: "ants seal the house, heavy rain will gather."
Idiom usage
It's a sign of rain
Ants seal their holes
a chasm for dragon to hide or a cave for tigers to have their lair - lóng tán hǔ xué
leaves turning from green to yellow and from yellow to green - huí huáng zhuǎn lǜ
only rigidly adhere to words and expressions , without regard to the general meaning of the whole writing - xún háng shǔ mò