waistline
/ˈweɪstlaɪn/noun
1- an imaginary line around a person's body at the waist, especially with respect to its size腰围, 腰围线：
eliminating inches from the waistline.
把腰围缩小几英寸。
1.1
- the shaping and position of the waist of a garment衣服腰身部分。
1.2
- an imaginary line around a car or other vehicle at the level of the bottom of the windows汽车（或其他车辆）本身中部水平线, 腰线。