My younger brother caught the influenza.

This material has high corrosion resistance.

He was diagnosed with bipolar disorder.

He is writing a thesis on monotheism.

Sufficient caution is necessary when handling radioactive materials.

The success of this project is influenced by a lot of uncertainty.

This new software has backward compatibility, so you can use old version data without any problems.

These two software have complete interchangeability.

This new software maintains upward compatibility with the old version.

He feels dizzy when he stands up suddenly due to orthostatic hypotension.