Observing dark nebulae is difficult.

We are providing educational support to developing countries.

We should provide educational opportunities to children in developing countries.

He decided to challenge the exploration of the Dark Continent.

The National Security Council was convened to make important policy decisions.

My luggage is in the coin-operated locker.

He is connected to a ventilator due to his severe condition.

He spoke to me with an icy attitude.

He is strong like a stone.

竪 is one of the characters in kanji.