undercuts

物体下部的切口；由此切下的材料

A cut made in the lower part of something; the material so removed.

伐木时引导树木倒向的切口

The notch cut in a tree to direct its fall when being felled.

牛腰肉的下侧；里脊

The underside of a sirloin of beef; the fillet.

两侧剪短、顶部留长的发型

A hairstyle that is shaved or clipped short on the sides and kept long on the top.

向上的一击

A blow dealt upward.

模具或型模中具有负拔模角的部分

A section of a mold or pattern with negative draft angle

比对手提前进站换新胎以争取时间的策略

A pit stop strategy in which a driver seeks to gain an advantage over someone by pitting before them and using fresh tyres to make up time.

兔皮毛的鞍状部分向前腿延伸的部分

The continuation of the saddle of a rabbit's coat toward the front legs.