止汗药

例句：

1. 1. This antiperspirant is very effective at keeping you dry.
   这种止汗剂非常有效，能让你保持干燥。
2. 2. She applied the antiperspirant to her armpits before going to bed.
   她睡前将止汗剂涂在腋下。
3. 3. I'm using an antiperspirant to prevent sweating during exercise.
   我正在使用止汗剂来防止运动时出汗。