noun
trace
/treis/
trace 是什么意思
痕迹,踪迹,微量,迹线
A just detectable amount an indication that something has been present either of two lines that connect a horse's harness to a wagon or other vehicle or to a whiffletree a visible mark (as a footprint) left by the passage of person or animal or vehicle.
词性
noun
难度
进阶
页面用途
检索复习