他摇摇晃晃地行走在停车场凹凸不平的地面上。He staggered on the uneven surface of the car park.其他时候，他会强迫她在完全无人帮助的情况下自己行走。At other times, he'd force her to walk totally unassisted.骆驼的蹄子虽然非常适合于在干沙上行走，碰到泥泞时却无计可施。The camel's feet, well a...
Construct two mutually orthogonal tangents of the deltoid. Where do they meet?三角星形线的两条互相垂直的法线的交点在哪里?Construct rotating cardioid and deltoid while remaining orthogonal to each other.作旋转的心脏线和旋转的三角线,且彼此维持正交.Construct an ani...