回声

• His echoing cry woke the mountain valley .
  他叫喊的回声震荡着山谷。
• The canyon is famous for producing echoes .
  这个峡谷以回声而闻名。
• The return of the echo will elapse longer time .
  回声返回所耗的时间越长了。
• The echo of the explosion damped itself in the air .
  爆炸的回声还萦回在空中。
• The echo was sent from the cave .
  回声是从洞里传出的。
• The bat judges distances by a kind of echo-location .
  蝙蝠用一种回声测定法来判断距离。
• The daily echo has a readership of over ten million .
  《每日回声报》拥有读者逾一千万人。
• Dolphins also navigates by some kind of echo system .
  原来海豚也是借助某种回声系统寻向的。
• In their echoes, there was a tone of unutterable sorrow .
  他们波动的回声中带有一种难言的悲哀。
• The empty room echoed .
  空屋发出回声。