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“争先恐后”，汉语成语，意思是指争着向前，唯恐落后。可以翻译为“rival for priority，vie with each other in doing something或strive to be the first”等。
例句：
他们争先恐后地想一睹那位歌手的芳容。
Each of them was eager for a glimpse of the singer.
孩子们争先恐后地从邮递员那儿把包裹拿过来。The children fell over each other to take the parcel from the postman.