[cā liàng]
shine (shoes, utensils, etc.); rub; rubbing; polish
remove the scales from one's eyes; sharpen one's vigilance; keep one's eyes skinned [polished]
擦亮眼睛
rub up furniture
擦亮家具
polish up the handle of door
擦亮门把手
Shine your shoes before going out.
出门前把你的皮鞋擦亮。