dip needle

例句：

1. 1.She dipped her needle into the hot water to warm it up.
   她将针蘸入热水中以加热。
2. 2. The doctor used a dip stick to check his blood pressure.
   医生用蘸针来检查他的血压。
3. 3.He dipped his hand into the cool water to rinse off the soap.
   他将手浸入冷水中以洗去肥皂。