I made a bit of a boob throwing that file away.
我犯了个愚蠢的错误，把那份文件扔掉了。
You have to file away for hours to get this metal smooth.
你得锉上几个小时才能使这金属变得光滑。
I admire the ingenuity and file away the idea for possible use in the future.
我佩服他们的想象力，并把这个想法归档以备将来之需。
I saw the policemen file away a moment ago.
刚才我看见警察排成一列纵队出发了。
You have to file away for hours to get this metal smooth.
你得锉好几个小时才能锉平这块金属。
You have to file away for hours to get this metal smooth.
你得锉好几个小时才能锉平这块金属。
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