After the school children had staged several practice fire drills, the fire chief and his staff were called to watch the elementary school pupils go through the drills again.
After the school children had staged several practice fire drills, the fire chief and his staff were called to watch the elementary school pupils go through the drills again.
在学生们进行了几次消防训练之后，消防队长和队员应邀前来观看小学生重新表演消防演习。