turning curve的用法和樣例：
例句
- Like a vertex of a polyline, it expresses a point on the object, but it also expresses the shape of the curve at the point.
和折線(xiàn)上的定點(diǎn)類(lèi)似，它也表示對象上的點(diǎn)，不過(guò)這里表示的曲線(xiàn)上的點(diǎn)。 - Architect can choose any kind of grooves,curve diversification or various curving styles with his pleasure.
建筑師可以任意選擇凹槽和折線(xiàn)變化或各種曲線(xiàn)造型。
