Meaning of dǎ kāi:
dǎ kāi
打开
Verb
to open; to show (a ticket); to turn on; to switch on
Qǐng nǐ bāng wǒ dǎkāi nà shàn chuānghù.
请你帮我打开那扇窗户。
Please help me open that window.
Qǐng bǎ nǐ de piào dǎkāi gěi wǒ kàn.
请把你的票打开给我看。
Please show me your ticket.
Qǐng nǐ dǎkāi dēng.
请你打开灯。
Please turn on the light.
Qǐng nǐ dǎkāi dēngguāng.
请你打开灯光。
Please switch on the light.