动脑筋

Traditional form:

動腦筋

Pinyin (reading):

dòngnǎojīn

Definitions:

• to use one's brains
• to think

Characters:

• 动 - to move, to happen; movement, action
• 脑 - brain
• 筋 - muscles; tendons

Traditional characters:

• 動 - to move, to happen; movement, action
• 腦 - brain
• 筋 - muscles; tendons