activation record

基本解释

The activation record contains all of the call-specific data for the function, including parameters and local variables.
活動記錄包含了這個函數的所有與調用有關的數據，包括蓡數和本地變量。
This makes it easy for functions to know where their activation record is -- they are simply defined in terms of the stack pointer.
這對函數了解自己的活動記錄在什麽地方提供了方便 —— 它們可以使用堆棧指針的形式簡單地進行定義。
Each call gets its own activation record, so each time it is called the variables get their own storage space within that activation record.
每個調用都有自己的活動記錄，因此每次被調用時，變量都會在活動記錄中獲得自己的存儲空間。