Nevertheless, a sudden heart spasm, the cause of which is still a mystery, led to Sung collapsing in his cold Nanjing office. He had just turned 60 years old.
然而，一場至今查不出原因的突發性心臟痙攣，讓當時才過 60 歲生日的他昏倒於 6 度低溫的南京辦公室。