The counter 3枚 is used for counting: 3 flat objects (paper, tickets, plates, shirts) (Category: 枚 (mai) - Flat objects, JLPT N5). 三 (san) + 枚 (mai) is regular. No voicing is triggered on 'mai'.
Context Example
シャツを3枚洗いました。
Shatsu o sanmai araimashita.
I washed three shirts.
Which counter represents "3 flat objects (paper, tickets, plates, shirts)"?
Correct! 🎉
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