监考偶成
                    无患子
                窗外鸣啾啾，
                场内睡昏昏。
                频频望壁钟，
                哈声间可闻。
                                  2021.7.6

Wrote occasionally during the invigilation

                soapberry
Birds singing outside,
Students napping inside.
Looking at the wall clock，
All the time.
What wondering,
Is the sign.

                              July 6,2021