Serrasoid
锯齿波(调制)
🗣️ 情景例句
If we land a man on the moon, I think someone could surely invent a toaster that works properly.
如果我们能让人类登陆月球，我想一定会有人能发明在月球上还能正常运行的烤面包机。
He likes playing the harmonica.
他喜欢吹口琴。
New york
纽约