古琴的声音与山间的回声交织在一起，直到音乐家感到自己与自然融为一体。
The sound of the guqin mixed with the echoes from the mountains, until the musician felt he was at one with nature.
主动应用声纳并与特殊形态学和生理学调节结合在一起的回声定位，使蝙蝠能用声音来“看”这个世界。
Echolocation, the active use of sonar along with special morphological and physiological adaptations, allows bats to "see" the world with sound.
洪亮的声音在大殿中响彻，高高的穹顶回荡起庄严的回声，肃穆而庄严，声势冲天。
The Hong sunny voice resounds through in the big palace, Gao Gao's Qiong crest starts to reverberate serious echo, solemn and peaceful but solemn, the threatening coerce hurtle sky.
是否和着山脉的回声一起歌唱？
是否和着山脉的回声一起歌唱？
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