Chinese phrase
不知道 bù zhī dào
Meaning
not know
When to use it
It shows that the speaker does not know something. It is a simple, common reply when the speaker lacks an answer or information.
Example dialogue
去超市怎么走？ qù chāo shì zěn me zǒu
How do I get to the supermarket?
我不知道。 wǒ bù zhī dào
I don't know.