Elvan
n. 淡英斑岩
🗣️ 情景例句
Can I talk to you?
能和你谈一下吗？
Nothing is really beautiful but truth.
只有真理才是真美。
and a period (which is the time it takes a wave crest to travel one wave length).
和周期（浪峰走过一个波长所需的时间）。