Translation of "Structure" in Chinese

The structure of the brain is complicated.

頭腦的結構很複雜。

The school's tallest structure is that water tower.

学校最高的建筑就是那个水塔。

- This is the most massive structure I have ever seen.
- This is the most massive structure I've ever seen.

这是我所见过的最大型的构造了。