Speedflash
n. [摄][电子]电子闪光,频闪放电管
🗣️ 情景例句
That's always nice to hear, Mr. Marchetta.
听到这事总是好的， Marchetta先生。
Excuse me! I'm sorry I startled you!
对不起！很抱歉，让你受惊了！
Before you leave the lab, make sure the electricity is turned off and the windows are shut.
你们离开实验室前，务必要关上电源，关好窗户。