他使这封信保持正式公文的语气。

He kept the tone of the letter formal and businesslike.

《牛津词典》

他们想使计划获得正式批准。

They tried to get official sanction for the scheme.

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短期贷款还清使你决定你的正式按揭。

Short term loans make your decision to pay off your mortgage official.

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汤姆在正式比赛前做了些准备活动， 使肌肉放松。

Tom loosened up with a few exercises before the big match.

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正式应用软件使一种CAD软件包区别于另一种。

It is the application software that makes one CAD package different from another.

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正式应用软件使一种CAD软件包区别于另一种。

It is the application software that makes one CAD package different from another.

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