他在两节课之间的短暂间隙里快速检查了邮件。
He quickly checked his emails during the ___interstice between classes.
阳光从窗帘的缝隙间透进来。
Sunlight came through the ___interstices of the curtains.
阳光从窗帘的缝隙间照了进来。
Sunlight shone through the ___interstices of the curtains.