streak flaw

例句：

1. 1.The painting has a streak of paint on it that needs to be touched up.
   这幅画上有一道油漆脱落需要修补。
2. 2. The car had a few minor scratches on the dashboard.
   这辆车的仪表盘上有几个小划痕。
3. 3.His work is full of flaws, but he's determined to improve.
   他的工作有很多缺陷，但他决心改进。