Gemmologists
(gemmologist 的复数) n.宝石学家
🗣️ 情景例句
I'd love to come. But I have to be on duty this weekend night.
我是想过来，但我周末晚上得值班。
So I made a mistake, big deal!
我真是错得离谱了。
and should never be added to drinking water.
永远不能掺入饮用水。