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to be in confusion or commotion; to be in a turmoil; to be crowded or jammed with people
避難所はごった返した。
The evacuation center was in turmoil.
祭り会場は人でごった返している。
The festival venue is bustling with people.
年末年始の駅のホームはいつもごった返す。
The station platforms are always chaotically crowded during the New Year holidays.