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我把物体放,在斜面上,增加倾斜角度,直到开始下滑。
So we're going to put a particular object on that incline and I'm first going to raise the Angle until it breaks loose.
youdao
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我把物体放,在斜面上,增加倾斜角度,直到开始下滑。
So we're going to put a particular object on that incline and I'm first going to raise the Angle until it breaks loose.
youdao