He monitored the enemy's movements using a periscope.

He lost everything.

She is planning a date with her current boyfriend.

My boyfriend gave me a gift.

Everyone was surprised by the news.

Based on the Air Pollution Control Law, factories must strengthen the management of exhaust gases.

I went to the station through the underground passageway.

He likes to take a walk in the park at dusk.

We should always remember the power of Kannon in difficult times.

This ancient proverb, 'know the other side and yourself, and you will not be in danger in a hundred battles', teaches us the importance of understanding ourselves and others.