I must go—I have a train to catch.

我得走了—我要赶火车。

《牛津词典》

I was watching the clock all through the meeting, as I had a train to catch.

我开会的时候一直在看钟，因为我要赶火车。

youdao

There is a train to catch.

我们要赶火车，换乘短途火车去意大利。

youdao

Roseman spent the next six months waking up at 4:15 a.m. to catch a train from New York to Philadelphia.

WSJ: Youngest GM in NFL living childhood dream

"I thought it was just media hype, " said Stacia Kopplin, who was fleeing her financial services job shortly after noon to catch a train home to the suburbs.

NPR: Snow Storm Barrels Through Midwest To Mid-Atlantic

Hundreds of families, rail enthusiasts and interested onlookers took up positions at stations and on bridges to catch a glimpse of the train, as it travelled non-stop.

BBC: London