It is reported that North Korea has conducted another nuclear bomb test.

He is looking for a proving ground to test his new theory.

He conducted a thought experiment to solve a problem in physics.

He suffered from external bleeding due to an accident.

He has experience living in a foreign country.

That proposal is completely unthinkable.

We are searching for extraterrestrial life.

Please teach me how to calculate the circumcenter of this triangle.

Sotonami is my best friend.

The outward appearance of that building is very modern, attracting people.