最近一个时期，我听到了“低碳生活”一词。

A recent period, I heard the word "low-carbon life".

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然后我听到它，一个低，单调，快速声音。

Then I heard it, a low, dull, quick sound.

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然后我听到它，一个低，单调，快速声音。

Then I heard it, a low, dull, quick sound.

youdao