英语词汇“ultrasonic”的读音、翻译、释义、用法及例句-高考报名网

词汇	ultrasonic
释义	ultrasonic a., n. 超音波(的)（频率超过可听频率范围的,约 20,000 hertz 以上）
随便看	set square Setswana sett settecento settee setter setter-on setterwort set theory setting setting board setting circle setting lotion setting needle setting point setting rule setting stick setting-up setting-up exercises settle settled settlement settlement day settlement house settlement worker

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