Dazzling sparkle.

Zai Liang is a status word, and its pinyin is zèngliàng. Zuoliang means that utensils and other objects shine brightly after being polished or arranged.

The source is Chapter 4 of Part 6 of Wei Wei's "The East". The original text is: On the small kang table in the center of the room, there is a brass cannon shell, polished to a bright shine, filled with golden and red bullets. Wild lilies.