名词中文翻译
中文翻译：群回声
同义词：
['echo group', 'echo groups']
例句：
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1. The sound of the waves hitting the shore was a group echo.
海浪拍打岸边的声音是群回声。
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2. In the forest, the group echoes of birds and animals are heard all around.
在森林里，可以听到鸟儿和动物的群回声。
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3. The group echoes of the past are still felt in the present.
过去的回忆仍然在现在的感觉中。