Then create a blank model, and name it M1.
然后创建一个空白模型，并命名为 M1。
M1:Look, there is a policeman, let's ask him the way.
看，那有一个警察，我们去问他吧。
We have an object which has a mass, m1.
有一质量为m1的物体。
T I have gravity, m1 g, and I have a tension t.
重力为m1g，张力为。
"M1 power" from a foreign language school, the end to test Russian.
“m1幂”来自某校外语专业，期末要考俄语。
"M1 power" from a foreign language school, the end to test Russian.
“m1幂”来自某校外语专业，期末要考俄语。
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