sucksthin
—phrasal verbwithsuckverbuk/sʌk/us/sʌk/
topullthemusclesofyourstomachorcheeksinwards,especiallytotryto make yourselfappearthinner
收缩（腹部或面部肌肉，尤指为了显示身体较瘦）
Iwalkedpast them in myswimmingcostume,suckingmytummyin as hard as I could.穿着泳装在他们身边走过时，我尽全力吸住肚子。