和身体部位相关的英语俗语

By heart  熟记，背诵
I know all my friends‘ telephone numbers by heart. I never have to look in the telephone book.

have a sweet tooth   爱吃甜食
I know you have a sweet tooth, so I bought you a box of chocolates.

head over heels in love 深爱着某人
Pam and Tony are head over heels in love. They‘re planning to get married.

pull someone‘s leg 愚弄某人，开某人的玩笑
Tomorrow is not a holiday. Don‘t believe Rich. He‘s just pulling your leg.

a long face   郁闷（忧虑）的表情，愁眉苦脸
Because Judy didn‘t get an invitation to the party, she‘s walked around with a long face since yesterday.