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keep the same look 保持原貌 keep watch 保持警戒，站岗
例如：
I would have been here sooner, but the rainstorm kept me back.
Every week there was a rebellion(造反)somewhere, and the Austrian soldiers were kept busy hurrying from one town to another in order to put down the rebellions.
While Leonov was outside the ship, he kept in touch by telephone with his companion and with the earth.
He kept on telling us the same story over and over.
You may depend on his doing what he says, for he is a person who always keeps his words.
Danger! Keep out!
Will this overcoat keep the rain out?
It is also bad manners to keep silent when the teacher asks you a question.
The rain kept up all night.
I see you are getting along well with your English studies. Keep up the good work.
The good news keeps our spirits up.
He walked so fast that I could hardly keep up with him.
Every few hundred meters along the wall there are watch-towers, where soldiers used to keep watch.
There is a sign there saying, “Keep off the grass.”
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