For Best Results: Keep mouth free of food and strong tastes for 15 minutes before and after taking this medicine.

要想取得最佳结果，在服用前15分钟或后不要吃食物或是刺激性的气息。

youdao

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

Keep your mouth healthy.

保持口腔健康。

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

Conservative Republicans have opted to keep their mouth shut during the election to help Bush win, but they won't hush up forever.

CNN: The Lover vs. the Fighter

Whenever I felt the anger, I would simply keep my mouth shut.

BBC: How to get along for 500 days alone together

Witness M also said he was threatened to "keep his mouth shut", and Belfast Crown Court heard claims on Thursday that these threats were carried out by Mr Breen.

BBC: Constable Stephen Carroll