I must dash to catch my train.

我必须火速离开去赶火车。

I must dash to catch a train.

我必须去赶火车。

A car rolls into the village and children dash to meet it.

一辆汽车驶进村庄，儿童们飞跑过去迎接。

He had to dash to catch the ball before it hit the ground.

他得冲向前去把尚未落地的球接住。

They dash to the city wall. Their defending shield is put up.

尼尼微召集所有的保卫者，让他们驻守在城墙边，他们的盾牌也已经摆放好。