B1 noun /ˈdʒʌm.pər/
Jumper
毛衣;
Meaning
a knitted garment worn on the upper body; a person or animal that jumps
Example
She wore a warm woolen jumper during the cold winter evening.
她在寒冷的冬夜穿了一件温暖的羊毛跳绳衣。