常見例句ultrasonic wave echo measuring distance 超聲波回波測距Her performance was cheered to the echo. 她的表演獲得長時(shí)間的喝采。The bird-song is the echo of the morning light back from the earth. 鳥的歌聲是曙光從大地反響過去的回聲。His words aroused no echo in their hearts. 他的話未能在他們心中引起共鳴。Bill wave his hand to us and then drive away. 比爾向我們揮手告別后開車走了。Radio2 can be heard on the long wave band. 第二廣播電臺(tái)可在長波段收聽到。 返回 wave-echo