A signal that is sent to a running process interrupts that process to force some sort of event, typically some action. Signals can come from, but not restricted to.
向正在运行的进程发送信号会中断该进程并强制执行某种事件，通常是某种操作。
Signals are software interrupts that send information about an occurrence of an asynchronous event to an executing program, or process.
信号就是软件中断，可以向正在执行的程序(进程)发送有关异步事件发生的信息。
Memory is a physical/chemicalprocess that happens after you've been exposed to something, and if anything interrupts the process, the memory is not stored.
记忆是当你暴露于某件事物 以后 才发生的物理和化学过程。 如果有什么东西打断了这一过程，记忆将不会被存储下来。
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