让我运行下这个程序。
To see exactly what the migration does, just run it and look at the database.
要准确地看到迁移做的工作,只需运行迁移并查看数据库。
If you're training for a marathon, you wouldn't expect to turn up and just be able to run it.
如果你正在为马拉松比赛训练,不要抱有露个面就能轻松跑完全程的期望。
But, just to be sure, not to be sure, but just to increase my confidence, I'm going to just run it again.
所以说它是对的是很有道理的,但是,确定一下,但是为了提高我们的自信,我要再运行一次。
I was hoping for a simpler answer, which is, just run it. Which is, yeah I know, seems like a dumb thing to say, right?
我希望一个简单点儿的答案,比如说去运行它吧,这方法看起来挺笨的对不对?
You couldn't just run something successfully in a cycle and get work out of it, using the heat from the hot reservoir, without also converting some of the heat that came in to heat that would flow into a cold reservoir.
如果一样东西在循环工作过程中,只有热从高温热源中流出,而没有热流入低温热源,那么此过程,不可能对外做功,不可能把所有热。
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