The children get very rumbustious after class.
下课后孩子们变得非常欢笑声四溢的.
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"a boisterous crowd"
"a social gathering that became rambunctious and out of hand"
"a robustious group of teenagers"
"beneath the rumbustious surface of his paintings is sympathy for the vulnerability of ordinary human beings"
"an unruly class"