Uddevallite
富铁钛铁矿
🗣️ 情景例句
I'm Jane. Glad to meet you.
我叫珍妮，很高兴认识你。
Bottoms up!
干杯！
a trough (the lowest point), a height (the vertical distance from the trough to the crest),
波谷（最低点）、浪高（从波谷到浪峰的垂直距离）