“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.