Oncolite
藻灰结核; 核形石
🗣️ 情景例句
Words cannot describe how sorry I am.
语言无法描述我对你的歉意。
Do you have an appointment?
你有预约吗？
He informed the station at once, but no one there was able to explain the mystery.
他马上把情况报告了该基地，但那里的人没有一个能解释这到底是怎么回事。