hard floor坚硬: hard; solid; stiffness; rigi ...底板: baseboard; baseplate; footwa ...硬底板蜡: hard plate wax硬底: hard bottom; hard ground坚硬: hard; solid; stiffness; rigidity; flintiness 坚硬的岩石 solid rock; rag; 坚硬度 flintiness下载手机词典可随时随地查词查翻译