back在這里應(yīng)該是不及物動(dòng)詞,所以與UP 連用構(gòu)成vt." data"是資料的意思.by 是通過,表示一種手段 ；“making soft copies of them”這里的"them"是指前面提到的“data".
我認(rèn)為應(yīng)該是：將資料拷貝到軟盤里面將有利于我們更好的保存的它們.
We should back up our data regularly by making soft copies of them.
We should back up our data regularly by making soft copies of them.
英語人氣：930 ℃時(shí)間：2019-12-18 20:44:39
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