ultrasonic
US /ˌʌl.trəˈsɑː.nɪk/
UK /ˌʌl.trəˈsɑː.nɪk/
形容词
1.
超声波
of or involving sound waves with a frequency above the upper limit of human hearing.
在 Lingoland 学习这个单词
超声波
of or involving sound waves with a frequency above the upper limit of human hearing.