activation record

基本解释

The activation record contains all of the call-specific data for the function, including parameters and local variables.
活动记录包含了这个函数的所有与调用有关的数据，包括参数和本地变量。
This makes it easy for functions to know where their activation record is -- they are simply defined in terms of the stack pointer.
这对函数了解自己的活动记录在什么地方提供了方便 —— 它们可以使用堆栈指针的形式简单地进行定义。
Each call gets its own activation record, so each time it is called the variables get their own storage space within that activation record.
每个调用都有自己的活动记录，因此每次被调用时，变量都会在活动记录中获得自己的存储空间。