The theory of the multiverse is particularly interesting in the field of physics.

He walked on the moon wearing a space suit.

I am interested in space exploration.

He is majoring in aerospace engineering.

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

Please remember to bring your travel documents.

The students on a field trip visited the museum.

Reducing greenhouse gas emissions is important for environmental protection.

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

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