And just for my convenience I call this now the plus direction just for my convenience — it doesn't really matter So now we have here mg — that is gravity acting upon you.
为了方便，正方向设为向下，方向如何取并不打紧，还有重力mg的-，作用。
I could have just done this, and the only reason I didn't here is just because now I look - at this, and now it's just getting confusing for me — even for someone who's been programming for a while.
我本可以这样做，我之所以没有这样做是因为，现在我看着这个，它是我有点迷惑了-，甚至是对于某些已经写了一段时间程序的人来说。
I could have just done this, and the only reason I didn't here is just because now I look - at this, and now it's just getting confusing for me — even for someone who's been programming for a while.
我本可以这样做，我之所以没有这样做是因为，现在我看着这个，它是我有点迷惑了-，甚至是对于某些已经写了一段时间程序的人来说。
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