keep a close watch day and night

keep a close watch day and night

It's a Chinese idiom. The Pinyin is zh ò UJ ǐ NGM ù x ú n, which means to be on guard. It comes from the stele of Wang Rong, written by Dai Shaoping of Song Dynasty.

Idiom explanation

Guard day and night. The metaphor is closely guarded.

The origin of Idioms

Dai Shaoping, Song Dynasty, wrote in the tablet of Wang Rong's divine way: "we know everything about public affairs. We patrol in the daytime and in the evening, especially in examinations."

Idiom usage

As an object or attributive, a warning day and night