My grandfather contracted poliomyelitis when he was young.

Functional analysis is a branch of mathematics that studies the properties of functions in infinite-dimensional spaces.

Neuroanatomy is an important field of study for understanding the structure and function of the brain.

The Edgeworth-Kuiper belt is a collection of icy bodies located on the outer edge of the solar system.

䆐 is my hometown.

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

His feelings are always warm, giving me a sense of security.

Mr. Kai takes a 30-minute walk every day.