Oncolite
藻灰结核; 核形石
🗣️ 情景例句
You speak English without an accent.
你说英语一点口音也没有。
Are you sure?
你确信吗？
The Maori have insisted on keeping their own customs and way of life.
毛利人一直坚持保留他们自己的风俗习惯与生活方式。