a smudge of dirt
collocation一块污渍
There was a smudge of dirt on his cheek.
他脸颊上有一块污渍。
污迹；污点
先理解核心含义，再看它在真实句子里的用法。
污迹；污点
A dirty mark or smear, especially a dark one.
There is a smudge of ink on your shirt.
你衬衫上有一块墨水污迹。
污点或污迹,尤指黑色或烟灰状的。
A blemish or smear, especially a dark or sooty one.
驱虫的烟熏火
a smoky fire to drive away insects
浓烟,如用于熏蒸的烟。
Dense smoke, such as that used for fumigation.
污垢造成的污渍
a blemish made by dirt
She tried to clean the smudges off the window, but they wouldn't come off.
她试图擦掉窗户上的污迹，但擦不掉。
AI contextual example
His glasses were covered in smudges, so he couldn't see clearly.
他的眼镜上布满了污迹，所以他看不清楚。
AI contextual example
he had a smudge on his cheek
他脸颊上有一块污迹
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一块污渍
There was a smudge of dirt on his cheek.
他脸颊上有一块污渍。
玻璃上的污迹
She wiped a smudge on the glass with her sleeve.
她用袖子擦掉了玻璃上的污迹。
留下污迹
Be careful not to leave a smudge on the painting.
小心别在画上留下污迹。
擦去污迹
He tried to wipe away the smudge on the page.
他试图擦掉书页上的污迹。
一块烟灰污迹
A smudge of soot marked the wall above the stove.
炉子上方的墙上有一块烟灰污迹。
一块深色污迹
I saw a dark smudge on the horizon.
我看到地平线上有一块深色污迹。
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读音像“抹迹”——手指一抹留下的黑印，就是smudge（污迹）。
语域：mixed 常见场景：everyday speech about a mark or smear、outdoor/camping: smoky fire to repel insects、agriculture/fumigation: dense smoke smudge 作名词时，语域因义项而异：表示“污迹/污点”时通常为中性，多用于日常口语和一般书面描述；表示“驱虫的熏烟”或“熏蒸的浓烟”时多用于户外、农业或技术性语境，语气更专门。
这些词都与 smudge 押韵，都包含 /ʌdʒ/ 音。注意 smug /smʌɡ/ 和 smut /smʌt/ 拼写相近，但发音不同，不押韵。
Dictionary facts from ECDICT, WIKTIONARY.