Gemmology
n. 宝石学
🗣️ 情景例句
So to speak.
可以那么说。
To dart through sky
突破阴霾的天空
He has pointed out that the tree is a useful source of income as tour-ists have been coming from all parts of the country to see it.
他指出，由于人们从全国各地纷纷前来参观这棵树，