to keep your nose to the grindstone

网络释义

1.	埋首苦干成语精选 II-:- Flash cards by... ... to keep your nose clean 不惹祸上身 to keep your nose to the grindstone 埋首苦干 ... cueflash.com

释义:

埋首苦干

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英汉双解词典包含2704715条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。