Although not a diplomat, he can proficiently use diplomatic terms.

他虽然不是外交官，却能熟练地使用外交辞令。

youdao

There is no such thing in diplomatic terms.

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Yet seen from India, and from countries that, unlike India and Pakistan, have observed the anti-testing norm and promised to forswear nuclear weapons, a presidential visit will amount in diplomatic terms to the next best thing to general acceptance.

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We remain focused on a diplomatic channel here, a diplomatic course in terms of dealing with Iran.

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