It's difficult to handle this machine.

We traveled to the southern island for summer vacation.

He contracted severe invasive streptococcal disease and underwent emergency surgery.

He is suffering from acute leukemia.

His heart became empty.

His heart felt like emptiness.

Listening to music is really enjoyable.

He said, 'The advantages of heaven and earth are nothing compared to the harmony among people,' emphasizing the importance of teamwork.

His army had a great array of spears and chariots like '輵'.

UNESCO is an international organization that promotes the development of education, science, and culture around the world.