笑话

In a sentence

• 这个笑话太好笑了，我忍不住大笑起来。

  This joke is so funny that I couldn't help but laugh out loud.

  In this sentence, "笑话" refers to a humorous story intended to make people laugh.

• 不要拿别人的错误开笑话，这是不礼貌的。

  Don't make fun of others' mistakes; it's disrespectful.

  Here, "笑话" is used in the context of teasing or ridiculing someone with the intention to amuse or deride.

• 他成为了全班的笑话，因为他在课堂上说了一个奇怪的答案。

  He became the joke of the class because he gave a strange answer during the lesson.

  In this sentence, "笑话" refers to a subject of ridicule or a laughingstock due to an action or mistake.