silly or slightlycrazy 愚蠢的 She must have been potty to sell that car so cheaply . 她肯定是傻了，把那辆车那么便宜就卖了。 I'd go potty if I had to work here all the time . 如果我得一直在这儿工作的话，我会变傻的。 be potty about sth/sb
to like something very much 对…着迷，迷恋 He's potty about old cars . 他对旧汽车很着迷。