If it is stateful, the same instance is used for start and stop.
如果它是有状态的,则使用相同的实例执行启动和停止。
The private[this] members are only visible to the same instance.
这些private[this] 成员仅对同一个实例内的成员可见。
Whether all users see the same instance or have their own instance of that data.
是否所有的用户看到的是同一实例或者他们有自己的数据实例。
Is is saying, do these things point to exactly the same spot in memory, the same instance.
指向内存中的同一位置,同一个实例,深意义上的相等。
The same instance.
内存中的同一位置。
He says, "to succeed in many things or many times is 'difficult.' For instance, to repeat the same throw of dice 10,000 times would be impossible; whereas, to make it once or twice is comparatively easy."
他说,要成就很多事情,或成就一件事情很多次,是很困难的,比如,掷一万次骰子都得到同样的结果,是不可能的,但是,掷一两次却是相对容易的
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