adjective · fresh, juicy, or succulent (typically referring to fruit or vegetables)

这些刚采摘的蔬菜看着真水灵。

adjective · full of life, healthy-looking, or attractive (typically referring to a person)

那姑娘长得真水灵。

noun · moist and bright (typically referring to eyes)

她那双水灵的大眼睛特别有神。