Catalin
[建] 铸塑酚醛塑料
🗣️ 情景例句
Whatever nonsense the papers print, some people always believe it.
不管报纸胡说什么都有人信。
No need!
免了吧！
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）。