This is a model of a muoctahedron.

He exhausted his strength to finish the work.

Sentarou fell asleep while watching TV.

He rubbed his hands together to get warm.

The Tōhoku earthquake off the Pacific coast, which occurred on March 11, 2011, was the largest earthquake in Japanese history.

His shout echoed far away.

He was recalling fondly the summer vacations of his childhood.

Akira does not want his parents to come on class observation days.

Our town suffered significant damage due to the earthquake.

He has a strong sense of self-affirmation and always maintains a positive attitude.