A large crowd gathered outside the store before the holiday sale opened this morning.

今天早上假期特賣開始前，一大群人聚集在店門外。

Please arrive early, as the conference hall will fill with crowds after nine.

請提早抵達，因為九點後會議廳會擠滿人潮。

Our tour guide held up a red flag so we wouldn't get lost in the crowd.

我們的導遊舉起紅旗，讓我們不會在人群中走散。