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1·He maintained a poker face.

他一直面无表情。《牛津词典》

2·She managed to keep a poker face.

她设法不露出任何表情。《柯林斯英汉双解大词典》

3·In business a poker face can be very useful.

在生意场上，不露声色会非常有用的。《柯林斯英汉双解大词典》

4·My boss is a real poker face.

我老板就是张扑克脸。

5·She has such a poker face!

她有张不漏声色的脸！

6·I always keep a complete poker face.

我总是绷着一张脸。

7·He always keeps a complete poker face.

他老是一副死板板的面孔。

8·Keep a Poker face in business situations.

要保持一种办现公事时一本正经的神态。

9·The athlete kept a poker face before the game.

运动员在比赛前很镇定。

10·A poker face is one without expression or emotion.

扑克脸表示某人没有任何情感表达。