He is good at singing songs in head voice.

He is active as the young leader of this organization.

He instinctively scratched his head when faced with a difficult problem.

He scratched his head when faced with a difficult problem.

He is bright, so he was able to solve the problem immediately.

His new yacht has a high-bow design.

Cephalopods are a type of marine life that includes squid and octopus.

The glans penis of a male is part of the erogenous zones, and is particularly known to be sensitive.

The moment I saw the exam questions, my mind went blank.

He trains his biceps at the gym every day.