It was on his way back past them,clutching a large doughnut in a bag,that he caught a few words of what they were saying.
归途中赶过他们时,他手中紧握袋中一个大甜甜圈,听到了他们说的几句话.
在on his way back past them :归途中赶过们时.
doughnut :甜甜圈