魏碑心思朗文词典

ultrasonic

U 开头单词六级词汇专八核心词

柯林斯词典

    ultrasonic /ˌʌltrəˈsɒnɪk/

  • 1. ADJ Ultrasonic sounds have very high frequencies, which human beings cannot hear. 超声波的[usu ADJ n]

    • 返回 ultrasonic

剑桥词典