quackishness

例句：

1. 1.The actor's performance was so bad that it made the audience laugh.
   演员的表现如此糟糕，以至于观众都笑了。
2. 2.She had a lot of fun at the party, but she also made some silly mistakes.
   她在聚会上玩得很开心，但也有一些愚蠢的错误。
3. 3. He was accused of being quackish by his colleagues, who thought he was too foolish to be trusted.
   他的同事们指责他是傻瓜，认为他太愚蠢而不值得信任。