Definition: Irregular actions or events happen with a different amount of time between each one. Level: B2
公交车到站的时间不规律。
The buses arrive at ___irregular intervals.
她的睡眠时间不规律，影响了她的精力。
Her sleep schedule is ___irregular, affecting her energy levels.
他的工作时间不规律，很难提前计划。
His work hours are ___irregular, making it hard to plan ahead.
