This instruction book is easy to understand even for beginners.

He started a special exercise to strengthen his plantaris muscle.

He used a stick to measure the depth of the river.

The speed of sound is about 343 meters per second in the air.

The acceleration of this car is amazing.

His machine is moving at a speed of 5 meters per second.

He used a special fertilizer to force the growth of tomatoes.

He succeeded in forcing the cultivation of tomatoes.

His breath is getting weaker.

The high-speed train has arrived at the station.