Chinese phrase
小心，别撞到〜！ xiǎo xīn bié zhuàng dào 〜
Meaning
Be careful not to run into ___!
When to use it
Warns someone to avoid running into something. It is a brief, caring warning used when a person may be moving toward an object.
Example dialogue
我去捡球！ wǒ qù jiǎn qiú
I'm going to get the ball!
小心，别撞到墙！ xiǎo xīn bié zhuàng dào qiáng
Watch out, don't run into the wall!