她总是主动帮忙擦黑板、擦老师的椅子和桌子。

She's always volunteering to clean the blackboard, the teacher's chair and desk.

youdao

丹尼尔：汤姆，你的任务是擦黑板。

Tom: Daniel, I am not tall enough to reach the of the blackboard.

youdao

丹尼尔：汤姆，你的任务是擦黑板。

Daniel: Tom, your task is to clean the blackboard.

youdao

你能帮忙擦擦黑板吗？（可以。）

Would you mind cleaning the blackboard? (No, I'll do it. )

youdao

我们应该帮助老师擦黑板。

We should help the teacher clean the blackboard.

youdao

我们经常帮助老师擦黑板。

We often help the teacher clean the blackboard.

youdao

今天应该由谁来擦黑板?。

Who is supposed to clean the blackboard today?

youdao

老师正在用黑板擦擦黑板。

The teacher is cleaning the blackboard with a board rubber.

youdao

汤姆，你的任务是擦黑板。

Tom, your task is to clean the blackboard.

youdao

拿出书。打开书。来黑板这儿。擦黑板。

Take your book. Open your book. Come to the blackboard. Clean the blackboard.

youdao

让我来擦黑板吧！好的。

Let me clean the board! Good.

youdao

他一定在教室里，刚才我看到他在擦黑板。

He must be in the classroom, I saw him clean the blackboard just now.

youdao

今天是你们值日，别躲了，ⲥ快擦黑板吧。

You are on duty today, so stop shirking and erase the blackboard!

youdao

我现在需要擦黑板吗？

Need I clean the blackboard now?

youdao

老师告诉他擦黑板。

The teacher told him to clean the blackboard.

youdao

七和八，貒擦黑板。

Seven and eight, clean the board.

youdao

每节下课后擦黑板。

Clean the classroom after each class.

youdao

轮到你擦黑板了。

It's your turn to clean the blackboard.

youdao

让我们来擦黑板。

Let's clean the blackboard.

youdao

你来擦黑板！

You clean the blackboard.

youdao

擦黑板。

Erase the board.

youdao

擦黑板。

Erase the board.

youdao