grind的精选

grind词根的派生词是grinding，grinding中文意思是adj.（状态）难熬的，折磨人的刺耳的，吱吱嘎嘎响的ThispictureechoesanoldChinesepoem:Sharpedgeofaswordcomesoutfromgrinding，andplumblossom&#39sfragrancecomesfromthebitt...