The trolleybus is very convenient as a means of urban transportation.

He shook his head up and down.

He picked up the vajra staff and began to pray quietly.

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

The cricothyroid muscle is an important muscle for adjusting the tension of the vocal cords.

The thyroarytenoid muscle plays a crucial role in regulating the tension of the vocal cords.

The government declared a state of emergency to prevent the spread of the new coronavirus.

Kuni was fascinated by the story in the picture book.

Understanding the concept of 'Ha-line conversion sounds' is important in learning Japanese.

The United Nations Children's Fund is working to improve the lives of children around the world.