The water level of this river is rising rapidly.

Regulating this machine is difficult.

He used the air conditioner remote to regulate the room temperature.

The construction of the new building has begun.

We plan to construct a new house.

This dike was built to prevent flooding.

This weir was built to regulate the water level of the river.

Mr. Sekigami bought a necklace for his wife’s birthday.

We often have picnics by the river on weekends.

We often have picnics by the river on weekends.