Resonoscope
共振示波器; 谐振示波器
🗣️ 情景例句
the first settlers in America.
他们是第一批来美国定居的移民。
Do you want to airmail it or not?
你想发航空信吗？
Autumn is a busy season. The days get shorter and the nights get longer.
秋天是繁忙的季节。白天逐渐变短，夜晚则渐渐变长。