Don't talk in class

别说───Don't say it;上课───attend class;class begins

Don't say it.───不要如此说。

Don't say it serves me right or I'll thump you.───别说我活该，否则我就揍你。

Don't say it, I thought.───别说呀，我心想。

When I tell you I love you, I don't say it out of habit. I say it remi you that you're the best thing that ever happened to me.───当我告诉你我爱你，我不是出于习惯讲出来的。我是想提醒你，你是发生在我身上最美好的事。

Whatever you do, don't say it again. Don't try to force the words out of him. You'll only make him feel cornered.───无论如何，眼下你都不该再说“我爱你”了，也别强迫他对你说这三个字，那只会把他逼向墙角。

Don't say it like! This was all a chance encounter created by fate!───别那样说啦！这全是命运带来的偶然！

Don't say it serves me right or I'll thump you.

Don't say it! I realize this aloha shirt is a bit bright.

Don't say it so loud.

It's so simple to be wise. Just think of something stupid to say and then don't say it. Sam Levenson 

While you're here don't say it, and we might all stand a chance of getting out of here alive.