During recording, the remaining memory indicator decreases one by one. 剩余存儲量指示器將逐個(gè)減少。
John had spent hours keying data into the computer,but it all went down the drain when a power cut erased the machine's memory. 約翰花了數小時(shí)才把資料輸入了電子計算機，但電源一斷便擦去了機器中的存儲量，他的一切全白費了。
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