straight face

音标发音

“Our engineers know how to work without electricity,” says a national phone company's boss, with a straight face.
“我们的工程师知道如何在无电的情况下工作，”一家全国电话公司老板板着脸说道。
“Our engineers know how to work without electricity, ” says a national phone company’s boss, with a straight face.
一国营手机公司的老板，一脸平静的说，我们的工程师知道如何无电工作。
With a straight face, Iran’s representative endorsed the ringing declarations about strengthening nuclear safeguards, while also helping block moves that would have made tougher rules mandatory.
伊朗的代表绷着一张脸，支持关于加强核安全保障的强有力宣言，同时也有助于阻止强制制定更加严格的条款的举动。

Climbers have to pull themselves straight up the face of very high rocks or walls.
That permits people to cite it as a model with a straight face eight decades after it was enacted?
让人们引以为典范,以严肃的态度认为,即使这个新政已是八十年前的事情了？
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and swung right into the straight face of the cliff and
直接撞上了峭壁，
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Quite how anyone could suggest this with a straight face I am not sure.
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a serious expression on your face that you use when you do not want someone to know that you think something is funny