Grandpa takes a walk in the park every day.

To convert dollars into yen, use the current exchange rate.

This product is suitable for mass production.

We will start mass producing this new product from next month.

Coral reefs are very important for marine ecosystems.

Postnatal care is very important.

Coral reefs play a very important role in the marine ecosystem.

This factory produces 100 cars a day.

This factory produces a large amount of products every day.

This room is in a state of dispersion with things scattered around, and it needs cleaning.