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many people speaking together or saying a similar thing at the same time
许多人在同一时间说同样的或相似的话，异口同声
"Not now," the children chorused in unison, "we're watching TV."
“现在不要，”孩子们齐声嚷道，“我们正在看电视。”
'All the best,' called the other typists in chorus.
“祝万事如意，”其他打字员齐声喊道。