磨穿鉄硯
ませんてっけん
- showing unyielding diligence in one's studies; wearing a hole through one's metal inkstone from constant studying n yoji
Kanji
磨
マ
みが.く • す.る
grind; polish; scour; improve; brush (teeth)
穿
セン
うが.つ • は.く
put on (to the feet); dig; pierce; drill
鉄
テツ
くろがね
iron
硯
ケン • ゲン
すずり
inkstone