noun 下载 🔗分享 地勤人员,地面维护人员 The crew that maintains aircraft on the ground. Examples : "The groundcrew worked quickly to refuel the plane before its next flight. " 地勤人员迅速地给飞机加好油,以便它能执行下一次飞行任务。 job military vehicle machine technical service 与AI对话词汇游戏阅读练习