HSK 6
Shìjiè shàng qūzhǐ-kěshǔ de jǐ wèi dàshī zhīyī.
One of only a handful of masters in the world.
HSK 6
Néng jiě zhè dào tí de xuéshēng qūzhǐ-kěshǔ.
The students who can solve this problem are very few.
HSK 7-9
Zhèzhǒng zhēnxī dòngwù rújīn qūzhǐ-kěshǔ.
This rare animal is now few enough to count on one hand.