She accidentally stepped on his foot on a crowded commutertrain.
她在一辆拥挤的通勤火车上不小心踩到他的脚。
《柯林斯英汉双解大词典》
2
And in an earlier era, his ripping yarns of science gone wrong like Jurassic Park and Congo dominated the departure lounge - as well as the beach, pool, commutertrain and bedside table.