I need a flat surface to write on.

我需要一个平面在上面写字。

《牛津词典》

If you write on the blackboard, rub it off at the end of the lesson.

如果你在黑板上写字，下课时要擦掉。

《牛津词典》

You can enter text on the QWERTY keyboard or simply write on the screen.

你可以用标准键盘输入文本或者直接写在屏幕上。

《柯林斯英汉双解大词典》

When you're teenagers, you don't quite know what to write on there. Little Os and Xs for kisses and things like that.

VOA: special.2010.02.08

Then he'd write on a little note " and hand it to the guy and say just keep this note.

之后金匠会将其记录到一张票据上,交给他个人并且对他说：“保留好这张票据。

耶鲁公开课 - 金融市场课程节选

You put it between two pieces of paper, then you write on the top one and it creates as copy on the bottom one.

你将它放在两张纸之间，然后你在上面那张纸上写字,下面那张纸上就会复印下来。

耶鲁公开课 - 金融市场课程节选

In fact, I'm going to write on Twitter what I am doing right now.

NPR: Sunshine State Smiles on McCain

We can write on a blank slate here in deciding some of these critical issues.

NPR: Managing The $30 Million 'One Fund' To Aid Boston Victims

In any case, I am glad that you chose to write on this topic, Jenna.

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