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

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

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

Proportional representation is an important system to ensure the fairness of elections.

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

The National People's Congress is the highest legislative body in China.

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.