《京都议定书》来之不易，是国际社会合作对付气候变化的第一步。
The Kyoto Protocol is a hard-won result. It is the first step the international community has taken in cooperation to address climate chage.
《京都议定书》来之不易，是国际社会合作对付气候变化的第一步。
The Kyoto Protocol is a hard-won result. It is the first step the international community has taken in cooperation to address climate chage.
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