[Ask ] what's the meaning of "put one's nose on grinding stone"

看板EngTalk作者Charleneme (acclaimed)時間19年前 (2005/04/29 14:13)推噓0(0推 0噓 0→)

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I can't find out the meaning on any tool book. please tell me if you know thanks a lot -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 61.230.229.183

文章代碼(AID): #12ST1vg2 (EngTalk)