head of the queue

例句：

1. 1. The head of the queueis responsible for ensuring that everyone follows therules.
   队伍的头负责确保每个人都遵守规则。
2. 2. The team's leader was chosenbased on their experience and expertise.
   团队的领导者是根据他们的经验和专业知识被选出的。
3. 3.The first in line got a free mealat the restaurant.
   排在最前面的得到了餐厅的免费餐。