他具有鉴别宝石品质的能力。

Tā jùyǒu jiànbié bǎoshí pǐnzhì de nénglì.

He has the ability to identify the quality of gemstones.

要学会鉴别信息的真实性。

Yào xuéhuì jiànbié xìnxī de zhēnshí xìng.

Learn to distinguish the authenticity of information.

在购物时要善于鉴别商品质量。

Zài gòuwù shí yào shànyú jiànbié shāngpǐn zhìliàng.

When shopping, be good at distinguishing the quality of goods.