不时

不时 means 'occasionally' or 'now and then,' indicating that something happens from time to time but not regularly. It emphasizes the irregularity of an event, often with a sense of surprise or unexpectedness.

The character 不 (bù) means 'not,' and 时 (shí) means 'time' or 'moment.' Together, 不时 literally translates to 'not at a fixed time,' suggesting something occurs without a set schedule.

不时 is commonly used in daily conversations to describe actions or events that happen sporadically. It can be found in both formal and informal contexts, such as describing weather changes, unexpected visits, or sudden occurrences.