The sound can be heard almost constantly or only occasional.

几乎可以听到的声音不断，或只是偶尔。

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Small birds eat almost constantly during daylight hours in the winter.

在冬天的整个白天，小型鸟类几乎在不间断的进食。

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Small birds eat almost constantly during daylight hours in the winter.

在冬天的整个白天，小型鸟类几乎在不间断的进食。

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