词汇	crawl through the grass
释义	crawl through the grass 爬过草地
随便看	variable operating condition variable operating conditions variable operating cost variable operation condition variable operation mode variable operator variable optical attenuator variable optical beamsplitter variable optical density variable order variable-order variable order element variable order guantity system variable ordering variable ordering strategy variable-order linear predietion variable order-quantity system variable-order recursive algorithm variable or flexible plan variable organic Variable Orientation Launcher variable orifice variable-orifice damper valve variable orifice desuperheater variable orifice die