知识贝壳
知识贝壳
所属栏目：英语习语
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 ） [阅读本文] >>