make an ass of oneself的用法和样例：
例句
- He has a knack of doing stupid things.
他惯于做蠢事。 - If you pretend to know what you don't know, you'll only make a fool of yourself.
不懂装懂就会闹笑话。 - Every day, unsuspecting foreigners in Taiwan make social blunders or experience what they consider strange behaviors.
在台湾，这些不知情的外国人每天都会闹笑话，或是经验到他们认为奇怪的行为举止。
