waist iron

例句：

1. 1. She wore a waist iron to make her dress fit better.
   她戴了一个腰围铁，使裙子更合身。
2. 2.The waist iron was designed to hold up the dress during the dance.
   腰围铁设计用来在跳舞时支撑裙子。
3. 3.He bought a waist iron for his wife as a gift on their anniversary.
   他为妻子买了一个腰围铁作为周年纪念礼物。