磨穿鉄硯
Meanings
Noun
Four character compound
1. showing unyielding diligence in one's studies; (lit.) wearing a hole through one's metal inkstone from constant studying
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| Anime | 1 | (0%) |
| Live action | 0 | (0%) |
| Visual novels | 0 | (0%) |
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| Web novels | 0 | (0%) |
| Aozora Bunko | 0 | (0%) |
Used in
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