act up
人文科學(xué)

        to misbehave; to behave in a troublesome or unco-operative way. (Informal.) □ John, why do you always have to act up when your father and I take you out to eat? □ My arthritis is acting up. It really hurts. □ My car is acting up. I could hardly get it......（本文共 220 字）     [閱讀本文] >>