英语短语词组词汇be hard at的音标、释义、翻译、用法及例句-英语短语词组词典-老街网

短语	be hard at
释义	be hard at努力从事;努力做：We are in duty bound to be hard at our work no matter what work we are engaged in.无论我们做什么工作，我们都有责任把它努力做好。
随便看	mast cell mast cells mastectomy -masted masted master master alloy master alloying master antenna television system master arm master-at-arms masterate masterates master batch master batching masterbatching master bath master bedroom master bedrooms master builder Master Card Master Charge master chief petty officer master chief petty officer of the coast guard master chief petty officer of the navy

老街网英语短语词组词典共收录525608条英汉双解短语词组词条，基本涵盖了全部常用短语词组的翻译及用法，是英语学习的有利工具。