inside lane
noun [ C ] uk/ˌɪn.saɪd ˈleɪn/ us/ˌɪn.saɪd ˈleɪn/
(ROAD)
UK（尤指供慢车行驶的）靠近路边的车道，外侧车道
the part of the road nearest the edge, used especially by slower vehicles
US内侧车道
the part of the road nearest the vehicles going in the opposite direction
(RACE)
（圆形跑道的）内圈
the part of a racetrack nearest the middle