"Contribute to the motherland" means: contribute to the motherland in the future. "Adding bricks and tiles" initially refers to constantly adding bricks and tiles when building a house, and later refers to doing some work and doing your best. Idiom usage: as a predicate, it means to do your best.

Add bricks and tiles to make sentences:

1, motherland, you let us stand tall and we will contribute to you.

I want to contribute to my motherland.

3. Being honest in politics is to contribute to the homeland, and official corruption will definitely make the homeland collapse.

We should learn our skills well and make contributions to the construction of the motherland in the future.

We should contribute to the construction of our hometown with practical actions.