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。
He made a monkey of me on the tennis court. 他在网球场上使我大出洋相。
I don't want to make a show of myself before strangers. 我不想在陌生人面前出洋相。