足球比赛中，在场下负责换人、换球、检查替补队员入场前的装备以及赛场管理等工作的官员fourth official

• 主裁判在第四官员还没有举起延时的电子牌便匆匆吹响了终场哨。

  The chief referee hastily blew the whistle for the end of the match before the fourth official had raised the electronic delay card.

• 他有望担任本场比赛的第四官员。

  He is expected to serve as the game's fourth official.