n.磨石;砂轮;持续辛勤地工作;努力不懈;
英文例句/中文翻译:
Lingtou Village slate mine, Xing's village millstone ore, product quality are excellent, specialty grindstone.
岭头村石板矿, 兴上村磨石矿, 产品质量均优, 特产磨刀石.
Take the sickle which is lying on the grindstone.
把磨刀石上的那把镰刀拿去.
He's got to keep grindstone to feed his six children.
他得一刻不停拼命做才能养活他那“六”个孩子.