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- Her performance was cheered to the echo. 她的表演获得长时间的喝采。
- A lunar occultation of a quasar. 类星体的月星掩测定
- A month, especially a lunar month. 太阴月一个月，尤指阴历的月
- The bird-song is the echo of the morning light back from the earth. 鸟的歌声是曙光从大地反响过去的回声。
- His words aroused no echo in their hearts. 他的话未能在他们心中引起共鸣。
- A luminous spot on a lunar halo. 幻月，假月月晕上的光斑
- It prevents the other end from hearing an echo of themselves. 该功能可以防止远端听到他们的回声。
- The astronauts piloted their craft down to the lunar surface. 宇航员驾驶宇宙飞船在月球表面降落。
- The daily echo have a readership of over ten millions. 《每日回声报》拥有读者逾一千万人。
- Her softening voice chimed in beautifully with the echo of the music. 她柔和的嗓音与乐曲的回声美妙地融为一体。
- The young man is only an echo of his mother's opinions. 那个年轻人只不过是他母亲意见的附和者。
- The Daily Echo has a readership of over ten million. 《每日回声报》拥有读者逾一千万人。
- The return of the echo will elapse longer time. 回声返回所耗的时间越长了。
- She shouted on the mountaintop and listened for the echo. 她在山顶上大声喊着，然后聆听着回声。
- It was reported that there would be a lunar eclipse tomorrow evening. 据报道说，明天晚上有月食。
- A circuit that needs to use an echo trap if the circuit is used alone. 一种电路，如果单独使用它，则需要使用回波抑制设备。
- News of the lunar landing swept the country. 登陆月球的消息一下传遍全国
- A young Air Force officer served as lunar module pilot for Apollo 16. 一位年轻的空军军官担任了阿波罗16号登月舱的驾驶员。
- The lunar gravity is about one-sixth that on earth. 月亮的引力大约为地球的六分之一。
- A device used underwater to produce pulses of sound, as for an echo sounder. 声脉冲发送器置于水下产生声脉冲的装置，如回音器中的装置
