['əupəl]
opal
n. 蛋白石,猫眼石

词形变化:

形容词:opaline

例句与用法:

  1. Opals are milky gems.
    蛋白石是乳白色的宝石.

英英解释:

名词 opal:

  1. a translucent mineral consisting of hydrated silica of variable color; some varieties are used as gemstones