单词	direction of curve
释义	direction of curve 曲线的方向
随便看	supplementary nutriments supplementary obligation supplementary observation supplementary occupation supplementary of academic history supplementary old-age insurance supplementary ordinances supplementary ovulation supplementary oxygen cylinder supplementary page supplementary pages supplementary penalties supplementary pension supplementary pension system supplementary personal allowance supplementary petroleum duty supplementary petroleum duty income supplementary pieces supplementary pipe supplementary plane supplementary plate supplementary point supplementary pollination supplementary position supplementary power