John helped his teacher erase the blackboard after class.

下课后帮老师擦黑板。

Will a black chalk chalk on a white blackboard?

黑色的粉笔会在白色的黑板上写字吗?

Mommy will write the words on the blackboard.

妈妈会在黑板上写下这个单词。

He was writing something on the blackboard.

他当时正在黑板上写东西。

Look at the two pictures on the blackboard.

看黑板上的两幅。

Please look at the four questions on the blackboard.

请看黑板上的四个问。

Now, look at the blackboard, please, and repeat after me.

请同学们现在看黑板， 并跟着我念。

I wrote down a bunch of ideas on the blackboard.

我在黑板上写一堆点子。

The students are asked write out the answers on the blackboard.

学生被叫去把答案写在黑板上。

He called Jobs into his office, sketched it out on his little blackboard, and asked him to design it.

他把乔布斯叫进办公室，在自己的小黑板上草图，然后叫他去设计。

He is drawing something on the blackboard with a piece of chalk.

他正用粉笔在黑板上东西。

Blackboard is one word, but drawing board is written as two words.

Blackboard是写成一个单词的形式，但是drawing board常以独立的形式现。

The teacher would stand at the front. She would write on a blackboard.

老师站在教室前面。她会在黑板上写板书。

Thinking of all these things, she stepped to the blackboard and wrote CATASTROPHE.

这么想着，她走到黑板前，把“CATASTROPHE”这个单词写来。

I can't draw oil because oil is black on a blackboard.

因为黑板也是黑的 所以我没法把石油来。

The little boy drew a picture on the blackboard with a piece of chalk.

小男孩用一根粉笔在黑板上。

And there's fresh chalk on the blackboard in case of any late-night epiphanies.

黑板那里有新粉笔可以记下深夜的灵光一现。

While the blackboard helped, he also encouraged other family members to communicate in English.

黑板帮助的同时，他也鼓励其他家庭成员用英语交流。

But there's a real high craft side to giving a beautiful lecture on a blackboard.

但上课时能写一黑板漂亮的板书确实需要很高的技巧。

But there's a real high craft side to getting a beautiful lecture on a blackboard.

但在黑板上进行一个漂亮的演讲确实要很高的技巧。