He is good at drawing a two-dimensional world.

This plane is perfectly horizontal.

He has two apples.

We need to think about this problem in multiple dimensions.

This two-dimensional array represents students in each row and subjects in each column.

The screen of my computer has cracked.

That old castle gives off a mysterious atmosphere.

He is raising a sheep.

I am planning to go to Mianyang next week.

Please write a note on the reverse side of this paper.