At the airport, drug dogs are sniffing passengers' luggage.

I go to the library every week.

He is receiving treatment at a mental hospital.

He is overly self-conscious, always worrying about what people think of him.

I was surprised by his overreaction.

In the world of mathematics, an abundant number refers to a number where the sum of its divisors is greater than the original number.

He lost everything.

She is planning a date with her current boyfriend.

My boyfriend gave me a gift.

Everyone was surprised by the news.