就在那时，铃响了，他们得赶紧去上科学课。

Just then the bell rang and they had to hurry to their science class.

youdao

我得赶紧了！

I have to hurry up!

youdao

你想回家吃晚饭的话，得赶紧走了。

You'll have to hustle if you're to get home for supper.

《柯林斯英汉双解大词典》

It could be the response is 'there's something dangerous in the environment, we got to move away', and so the response is for the cell to crawl in the opposite direction.

这个信号还有可能是,"外面很危险,我们得赶紧跑",于是细胞就向相反方向游走了

耶鲁公开课 - 生物医学工程探索课程节选

I want to get better for my trip next week.

为了我下周的旅行，我得赶紧好起来。

I'd rather 实战 - SpeakingMax英语口语达人