Be careful to keep your mouth in range of the microphone; don't weave around or turn away to answer a question from the side.

要注意保持你的嘴在麦克风的范围内；不要晃来晃去或转过身去回答旁边的问题。

youdao

Africans keep a small stick in their mouth to chew or scrub their teeth all day.

非洲人整天把一根小木棍放在嘴里咀嚼或刷洗他们的牙齿。

youdao

There is never any point in empty sentences. If you apologize, mean it. Otherwise keep your mouth closed.

空话是没有任何意义的。如果你要道歉，那就真心诚意。不然，就闭上你的嘴巴。

youdao

"I would imagine that if he runs his cabinet meetings or his meetings with his advisors in the same way he ran his classroom, no one gets to coast and keep their mouth shut and agree at the end,"

VOA: standard.2010.01.16

The PM himself has been urged by critics to keep his mouth shut in order to help restore confidence.

CNN: The Politics, Stupid

If you keep your tongue in your mouth you're okay.

FORBES: Magazine Article

After being warned by a tired bureaucrat in the heavens to keep his mouth shut, he returns, with relief, to his ordinary life.

NEWYORKER: Control Yourself