This train of thought was interrupted by peals of laughter like silver bells, as a bustling crowd of fourth-year primary school children, led by their teacher, arrived on their annual school outing.
思索間，被一陣銀鈴般的笑語打斷，一群四年級的小學生由老師帶隊，浩浩盪盪來做一年一度的校外教學。