I spilled the powder in the kitchen.

He is good at playing the guqin.

The People's Democratic Republic of Yemen was once an existing country.

The National Research and Development Agency plays a crucial role in advancing science and technology.

He has a strong sense of self-affirmation and always maintains a positive attitude.

He quoted the proverb 'Once a word leaves your mouth, you cannot chase it back even with the swiftest horse' to teach me to choose my words carefully.

The Democratic People's Republic of Korea is located in Asia.

Plants of this kind are collectively referred to as 'cacti'.

He is my best companion.

This offspring cannot yet be separated from its mother.