We want to give him a surprise, so please keep quiet about the birthday party.
我们想给他一个惊喜，所以请对生日派对这件事情保密。
请你保持安静！
但是，请保持安静。
Will the people sitting at the back please keep quiet?
坐在后面的人请安静，好吗？
课堂上请保持安静。
Please keep quiet when I am speaking.
我在发言时，请大家保持安静。
I want to be alone. Please keep quiet.
我想一个人单独呆一会，请安静会儿。
Please keep quiet! I'm trying to study.
请安静，我正在努力学习。
Please keep quiet! I am trying to study!
请保持安静！我正用功学习！
Please keep quiet ! I'm trying to study.
请保持安静！我想要学习。
Don't make any noise. Please keep quiet.
别出声，请保持安静。
Please keep quiet! He is trying to study.
请保持安静！他正在尽力学习。
Please keep quiet while others are studying.
别人学习时，请保持安静。
Please keep quiet while others are studying.
在别人学习的时候，请保持安静。
Please keep quiet while others are studying.
当你在图书馆时，你必须保持安静。
Please keep quiet; we are trying to work in here!
请你们安静点，我们还想在这里工作！
Please keep quiet! I've something important to tell you.
请保持安静！我有要事告诉你。
Please keep quiet when some other students make mistakes.
同学出错时，你要保持安静。
Bill: I love her so much, you know. I want to be alone. Please keep quiet.
比尔：你知道我非常喜欢她。我想一个人单独呆一会，请安静会儿。
Bill: I love her so much, you know. I want to be alone. Please keep quiet.
比尔：你知道我非常喜欢她。我想一个人单独呆一会，请安静会儿。
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