Consistent with the pre-dawn noises observed in wild fowl, the roosters began to crow about two hours before their rooms lit up.

公鸡在房间被照亮前2个小时就开始鸣叫了，这与在野外观察到的、公鸡黎明前报晓的时间一致。

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Consistent with the pre-dawn noises observed in wild fowl, the roosters began to crow about two hours before their rooms lit up.

公鸡在房间被照亮前2个小时就开始鸣叫了，这与在野外观察到的、公鸡黎明前报晓的时间一致。

youdao