I don't think you need to cut in the sense of you're using.
话说回来,从这个税率的高低本身来讲,倒也没必要动它。
Alright, this I haven't even touched yet.
这边的我目前还没动过。
You are pushing down with the weight mg, and the floor has got to be pushing up with the mg, because the spring is not going anywhere.
你向下的作用力是重力 mg,然后地面向上的支持力也是 mg,因为弹簧现在根本没动
应用推荐