race 是指 踪迹 行踪,可以是 具有 具体 形态的 足迹、痕迹.也可以是没有具体形态的事物,例如 气味.
track 是指 痕迹、轨迹 、轨道.并且都是有 具体形态的,非抽象的.
trace 的踪迹,涵盖范围广,track 可以 视为 trace 的多种形式中的一种.
例如:From the track left on the ground in this forest by XXX,we can say that we have eventually found the trace of XXX,for which we have searched for several years.