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Curve and path resistance are great, linear resistance is little, declivous path still has quicken force.曲線及上坡道阻力大, 直線阻力小, 下坡道還有加速力....

adj.下坡的，向下傾斜的...

declivous的音標(biāo)：declivous的英式發(fā)音音標(biāo)為：[d?'kla?v?s]declivous的美式發(fā)音音標(biāo)為：[d?'kla?v?s]...