Long-haul flights increase the risk of economy class syndrome.

You must be careful of economy class syndrome on long flights.

She asked me to deliver a message with a letter.

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

He is muttering to himself.

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.