Webnerite
硫锑银铅矿
🗣️ 情景例句
He was my roommate in college.
他是我大学时的室友。
Pam clearly saw in her mind what would happen.
柏姆无法明白究竟发生了什么事。
a wave length (the horizontal distance between two wave crests),
波长（两个浪峰间的水平距离）