pull one's leg

例句：

1. 1.He was pulling my leg about the weather forecast.
   他在开玩笑关于天气预报。
2. 2. She pulled his leg when she said she was going to cook dinner.
   她开玩笑说他要做饭。
3. 3. The joke was so good that he couldn't help but pull her leg.
   这个笑话太棒了，他忍不住取笑了她。