污痕 (wū hén) — stain, smudge, dirty mark

뜻

예문

• 这件白衬衫上有一块洗不掉的污痕。
  Zhè jiàn bái chèn shān shàng yǒu yí kuài xǐ bú diào de wū hén.
  There's a stain on this white shirt that won't wash off.
• 考古学家在陶器表面发现了古老的污痕。
  Kǎo gǔ xué jiā zài táo qì biǎo miàn fā xiàn le gǔ lǎo de wū hén.
  Archaeologists found ancient stains on the surface of the pottery.
• 墙上的污痕是多年雨水侵蚀留下的。
  Qiáng shàng de wū hén shì duō nián yǔ shuǐ qīn shí liú xià de.
  The marks on the wall were left by years of rain erosion.