It's great for quickly getting a perspective on the major time sinks in an application's execution, but may not be very useful in actually isolating which code is running slow and can be improved.
它可以很快地让您了解应用程序中最花费时间的部分，这很不错，但是在实际找出哪些代码运行得慢并且加以改进 这方面不是很有用。
Nature... just imagine you are nature, and this ball comes on, and in no time at all you have to solve these two equations very quickly.
自然，想象你是自然，这个球撞过来，你必须立马反应,快速解出这两个方程。
Nature... just imagine you are nature, and this ball comes on, and in no time at all you have to solve these two equations very quickly.
自然，想象你是自然，这个球撞过来，你必须立马反应,快速解出这两个方程。
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