visammin

例句：

1. 1. I've been looking for a good visammin to help me sleep better.
   我一直在寻找一种好的助眠剂来帮助我睡得更好。
2. 2. The doctor prescribed a visammin for my headaches.
   医生给我开了一种治疗头痛的药。
3. 3. She took the visammin and felt much better after a few hours.
   她吃了这种药，几个小时后感觉好多了。