衬裤内裤

例句：

1. 1. She bought a new pair of jeans and a matching T-shirt for her son's birthday.
   她为儿子的生日买了一条新牛仔裤和一件配套的T恤。
2. 2. He wore his favorite pair of boxers under the table while he was watching TV.
   他在看电视时穿着他最喜欢的内裤坐在桌子下面。
3. 3. She put on her favorite pair of socks and underwear before going to bed.
   她在睡觉前穿上了她最喜欢的袜子和内裤。