To talk noisily and incessantly; to chatter and whisper in a lively, often high-pitched manner, like birds chirping.
下课铃一响，教室里立刻变得叽叽喳喳，同学们都在讨论周末的计划。
As soon as the bell for class dismissal rang, the classroom immediately became a hubbub of chatter, with students discussing their weekend plans.
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