Hurry up, they are gaining on us!

快, 们渐渐赶上们了!

Hurry up. Tie up your shoelaces; we are late.

快, 上你的鞋带, 们晚了。

Hurry up, we're wasting time.

快, 们别再浪费时间了。

Hurry up! You'll be late.

赶快! 你会迟到的。