to write on the sand with reeds while teaching one's son (idiom); mother's admirable dedication to her children's education
指用荻在地上书画教育儿子读书。用以称赞母亲教子有方。该成语与欧阳修有关。
荻:芦苇。用芦苇在地上书画教育儿子读书。用以称赞母亲教子有方。
《宋史·欧阳修传》:“家贫,致以荻画地学书。”
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