in short pants

例句：

1. 1.She decided to wear her favorite pair of shorts for the picnic.
   她决定穿她最喜欢的短裤去野餐。
2. 2. He was wearing a pair of shorts when he saw the fire.
   当他看到火时，他穿着一条短裤。
3. 3.The boy is always seen in shorts during summer vacations.
   这个男孩在暑假期间总是穿着短裤。