He is an expert in nuclear physics.

My favorite fighting game is Street Fighter.

He solved the problem by hook or by crook.

His father fell into a persistent vegetative state due to a traffic accident.

He was concealing that information.

I couldn't understand his explanation because it was vague.

Microsoft's new software has been released.

He started his speech using a microphone.

The tensor tympani is a muscle located in the middle ear that regulates the tension of the eardrum.

Each class conducts lessons in their respective classrooms.