the alignment of the front wheels of a motor vehicle closer together at the front than at the back
toe-in详细解释
toe-in n.（名词）An inwardly-angled adjustment, especially a slight inward alignment of the forward edge of a motor vehicle`s front wheels to improve steering and minimize tire wear.（车轮定位）前束：角度向内倾斜做调整，特别是指汽车前轮的前缘稍微向内对准做调整，以便提高操控性及减少轮胎磨损
