请输入您要查询的英文单词：
单词
opal
释义
opal
NOUN
U
/ˈəʊpl/
a smooth stone used in jewellery . Opals look white like milk , but you can see other colours in them as they reflect light . 蛋白石（一种奶白色石头，反光时可看到里面的其他颜色）