单词	piano learning
释义	piano learning 钢琴学习
随便看	straight piece-work system straight pin straight pin porcelain insulator straight pins straight pin teeth straight-pin teeth straight pin terminal straight pipe straight pipe heat loss straight pipe injector straight pipeline straight pipe-line straight pipe nozzle straight pipe tap straight pipe thread straight pipe union straight platen straight platinum ore straight play straight plowing straight ply conveyor belt straight pneumatic chipping hammer straight pneumatic drill straight pneumatic grinder straight pneumatic riveting hammer