It takes all of our familiar distinctions - such as the clear divide between past and present, memory and foresight - and breaks down the divide.
它打破所有我们熟悉的明确划分的区别，譬如过去与现在，记忆和远见。
A tiny program can clear all of memory. A single instruction can stop the machine.
比如，一段小程序可以抹去所有的内存；一条简单的指令可以使主机停止运行。
To avoid memory leaks, however, you should clear all the elements in any recycled object before reusing it.
为了防止内存泄漏，你应当在重用前清除任何被回收对象的所有元素。
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