ultrasonic
[,ʌltrə'sɔnik]
释义
adj.超声的
ultrasonic sounds are sounds that humans cannot hear because they have very high frequencies
例句
Howard: All right, Sheldon, your bird death ray is ready.
Sheldon: It's not a death ray. It's just a little ultrasonic blast to scare him off. (The Big Bang Theory)
霍华德：好了，谢尔顿，你的鸟类死亡射线搞定了。
谢尔顿：那不是死亡射线，只是用超声波把它吓跑。（生活大爆炸）
