最后，motion 属性还可以带的一个值是linear，该属性让动画以恒速变化。

The final value that motion can take is linear, which keeps animation speed constant.

youdao

最后，motion 属性还可以带的一个值是linear，该属性让动画以恒速变化。

The final value that motion can take is linear, which keeps animation speed constant.

youdao