1550s, "trim, neat, spruce, smart," possibly an alteration of Low German smuk "trim, neat," from Middle Low German smücken "to adorn" (originally "to dress," secondary sense of words meaning "to creep or slip into"), from the same source as smock. The meaning "having a self-satisfied air" is from 1701, an extension of the sense of "smooth, sleek" (1580s), which was commonly used of attractive women and girls. Related: Smugly; smugness.
实用例句
1. He tried hard not to smile in smug self-satisfaction.
他强忍住沾沾自喜的笑容。
来自柯林斯例句
2. Thomas and his wife looked at each other in smug satisfaction.
托马斯和夫人得意地互相望了一眼。
来自柯林斯例句
3. The programme seemed false and sugary, and the characters smug.