稀有 (xī yǒu): không phổ biến

This kind of blue butterfly is extremely rare in the world; scientists spent ten years before finding just a few.

He happened to buy a rare poetry collection at a secondhand book market and was so happy he barely slept all night.

Because this metal is very rare, its price is several times higher than that of gold.

In this small town, people who can speak fluent French are rare, so the school places special value on that new teacher.

The number of pandas surviving in the wild is becoming increasingly rare, and protecting them has become an urgent task.