He is suffering from acute leukemia.

He contracted severe invasive streptococcal disease and underwent emergency surgery.

The United Nations Security Council plays a crucial role in maintaining world peace and security.

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

Zero is used to represent absolute zero.

His heart seems to have frozen.

Please go straight down this road.

His answer was unexpected.

He answered my question immediately.

This road intersects with that road.