We are focusing on the research and development of new products.

I conducted a research project as a summer vacation homework.

The development of this area has just begun.

We are working hard to develop new software.

This mineral has excellent cleavage, breaking cleanly along a certain direction.

He cleaved the wood.

Can you help me unpack the new TV?

I unpacked the new TV.

He contributed greatly to the foundation of the temple.

He went to the mountain to found a new temple.