He may say he's a doctor, but he's actually a veterinarian.

Based on my experience, that method is effective.

I like to experience new cultures.

The children are playing in the park.

The fee for this tour includes all additional charges.

This train is always crowded.

This theory is based on experimental results.

When it becomes night, you can see the stars beautifully.

He is good at explaining that theory.

My family consists of four people.