He opened a new restaurant for business.

The opening of the concert is at 6 p.m.

He was concealing that information.

He thought he was smart, but he remembered the proverb 'a fool may give a wise man council', and understood the importance of listening to others' opinions.

Scientists are developing a new type of fusion reactor.

He was surprised when he saw the list of nuclear powers.

He reported on the results of the subcritical nuclear experiment.

I'm fed up with his crappy posts.

He was trolling on the bulletin board.

His olfactory organ is very sensitive.