Macrooscillograph
常用示波器, 标准示波图
🗣️ 情景例句
They graduated from high school last year.
他们去年高中毕业。
You have to change at chicago station.
你必须要在芝加哥站转车。
and as the number of stars in the universe is so vast,
因为宇宙中恒星的数目极其庞大，