Usage note
赶快意味着要立即行动，不要拖延。例如，你妈妈让你收拾玩具时，你应该赶快去做。
gǎnkuài yìngzhe yào jílì xíngdòng, bùyào yōuyuán.
赶快 means to act immediately and not delay. For example, when your mom asks you to clean up your toys, you should do it quickly.
Context note
赶快常用于提醒人们要立即行动，不要拖延。比如在做作业、收拾房间或参加活动时。
gǎnkuài cháng yòng yú xǐngtīng rénmén yào jílì xíngdòng, bùyào yōuyuán. rúbèi zài zuò zuòyè、shōujī fāngjiān huò cānjia huódòng shí.
赶快 is often used to remind people to act immediately and not delay. For example, when doing homework, cleaning the room, or participating in activities.
5 examples
妈妈让你收拾房间，你赶快去做吧。
mā ma ràng nǐ shōu shí fáng jiān， nǐ gǎn kuài qù zuò ba。
Mom asks you to clean up your room, so do it quickly.
作业很多，赶快完成吧。
zuò yè hěn duō， gǎn kuài wán chéng ba。
There's a lot of homework, finish it quickly.
快吃饭了，赶快去洗手。
kuài chī fàn le， gǎn kuài qù xǐ shǒu。
It's time to eat, go wash your hands quickly.
比赛马上开始，赶快准备一下。
bǐ sài mǎ shàng kāi shǐ， gǎn kuài zhǔn bèi yí xià。
The game is about to start, get ready quickly.
妈妈让你早点睡觉，你赶快去洗澡吧。
mā ma ràng nǐ zǎo diǎn shuì jiào， nǐ gǎn kuài qù xǐ zǎo ba。
Mom asks you to go to bed early, so take a bath quickly.
5 mini stories
小明的作业很多，他赶快开始做。
xiǎo míng de zuò yè hěn duō， tā gǎn kuài kāi shǐ zuò。
Xiaoming has a lot of homework, he starts doing it quickly.
妈妈让他早点回家，他赶快收拾书包。
mā ma ràng tā zǎo diǎn huí jiā， tā gǎn kuài shōu shí shū bāo。
Mom asks him to go home early, so he quickly packs his backpack.
小红的房间很乱，她赶快开始整理。
xiǎo hóng de fáng jiān hěn luàn， tā gǎn kuài kāi shǐ zhěng lǐ。
Xiaohong's room is very messy, she starts cleaning it up quickly.
妈妈让他早点睡觉，他赶快刷牙洗脸。
mā ma ràng tā zǎo diǎn shuì jiào， tā gǎn kuài shuā yá xǐ liǎn。
Mom asks him to go to bed early, so he quickly brushes his teeth and washes his face.
比赛马上开始，他赶快检查装备。
bǐ sài mǎ shàng kāi shǐ， tā gǎn kuài jiǎn chá zhuāng bèi。
The game is about to start, he quickly checks his equipment.
Mini dialogue
动画片要开始了
A
动画片要开始了，赶快打开电视！
Dònghuàpiàn yào kāishǐ le, gǎnkuài dǎkāi diànshì!
The cartoon is about to start, turn on the TV at once!
B
好的，我找到遥控器了。
Hǎo de, wǒ zhǎodào yáokòngqì le.
Okay, I found the remote control.
收拾玩具
A
客人快到了，赶快把玩具收好。
Kèrén kuài dào le, gǎnkuài bǎ wánjù shōu hǎo.
The guests are almost here, put away the toys at once.
B
知道了，我马上收。
Zhīdào le, wǒ mǎshàng shōu.
Got it, I'll put them away right away.
Related words and contrasts
similar
赶紧
gǎn jǐn
hurry up
very close in meaning
similar
马上
mǎ shàng
immediately
emphasizes doing something right away