tooth trace

• 齿轨迹,齿间曲线

tooth trace的用法和样例：

例句

1. How could I trace your hair to wipe your tears?
   我如何顺着你发丝的轨迹去擦干你的眼泪？
2. The output from this program would be a trace of the three rectangles.
   根据此程序的输出则为三个短形的轨迹。