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

The photoelectric effect is a phenomenon where a material emits electrons after absorbing light.

We need to evaluate the cost-effectiveness of this project.

We need to evaluate the cost-effectiveness of this project.

Reducing greenhouse gas emissions is important for environmental protection.

He is using great force for a small problem. It's exactly like the proverb, 'Using a cleaver to kill a chicken.'

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

He said, 'Why use a cleaver to kill a chicken?' teaching me the importance of using the right tool for the job.

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.