use one’s head

use one’s head 动动脑子，仔细想想

【例句】

◆ If you meet with difficulties, you should use your head to find a way to overcome them．如果碰到困难，你应该动动脑筋想办法去克服。  

◆ The little child likes to use his head while studying.那个小孩子在学习时喜欢动脑子。