Remembering his son s classroom would be in the back right.corner of the building, he rushed there and started digging through the ruins.

• 终于记起儿子的教室应该就在那幢建筑物后面，位于右边的角落里，他跑到那儿，开始在碎石砾中挖掘，搜寻儿子的下落。