sharpening stone短语¹⁸⁰⁰⁹⁸⁺¹ 基本例句 磨石 The guy had set up his pedal- operated sharpening stone in one of the gloomy step- down doorways in the South End. 这伙计在南城一个阴暗的减缓的门道里安装了踏板操纵的磨刀石。 yeeyan A sharpening stone and honing guide are required for this task. 磨刀石和导向器就是为了完成这项工作。 yulerenwu.com