What does it mean to stay awake at night?

Diurnal and nocturnal means hiding during the day and coming out to be active at night.

Idiom Pinyin: zhòu fú yè chū.

Explanation of the idiom: Hidden day and night, Chinese idiom. Day: during the day; Fu: latent. It lurks during the day and emerges at night. It is often used to describe the habits of animals, and sometimes refers to people's irregular lives, which is common in jokes.

The source of the idiom: "Chen Shu·Shi Xing Wang Shu Ling Biography" of the Tang Dynasty: "When you are living, you are worried, you indulge in sexual pleasures, you give birth to a child, you go to the pavilion, the sun and the moon meet. You sleep in the day and night, and you are constantly accustomed to treachery. , raided the residents, Lifaqiu tomb."

Idiom synonyms: walking at night and hiding in the day. Walking at night and staying in the day, a Chinese idiom, pronounced yè xíng zhòu fú in pinyin. Source: "The Book of the Later Han Dynasty·Liu Yi's Biography": "At that time, bandits arose and the roads were blocked, making the post very rare. Yi traveled at night and stayed in the day until he reached Chang'an."

1. Through investigation, the police investigating the case found that Wang Hongming’s whereabouts were secretive, his contacts were complex, he frequently changed the vehicles he drove, and he was used to staying up and down at night. He rented two houses in the community.

2. According to the account, this group of people gathered together and hid in an air-raid shelter in November this year. Under Qi's instigation, they went out day and night to secretly cut communication cables, and had committed several crimes.

3. The East Asian scorpions that live in temperate zones have the habit of being diurnal and nocturnal. In winter, they burrow into rock crevices and caves to escape the severe cold.

4. We stayed day and night, passed through two enemy blockade ditches, crossed the railway, and arrived at Wan County to assemble.

5. The wingless bird is the symbol of the island country. It is a nocturnal bird with a long beak and no wings.