He treated her opinion as irrelevant.

He started unpacking the luggage.

The Edo period in Japan was a time when culture and art greatly developed.

I need soil for my garden.

The power of this new engine is unbelievable.

He practiced the proverb 'to keep a secret when asked about it' in order to protect the secret.

He is a citizen of three countries, holding citizenship in America, Canada, and Japan.

He is dreaming of paradise.

The Spring and Autumn Warring States period is a part of Chinese history.

The history of the Taiping Heavenly Kingdom is very interesting.