湿滑的地面上可以看到汽车急刹车留下的黑色痕迹。

The wet pavement showed dark ___skidmarks from the car's sudden braking.

他尴尬地发现内裤上有几道滑痕，立刻去洗了个澡。

He was embarrassed to find several ___skidmarks in his underwear and immediately took a shower.