The poor peasants with small farms were often short of massivedead stocks and livestock because of the shortage of money, and they usually had to buy and use stocks in joint venture.
经营规模较小的贫困农户则缺乏大农具及役畜,常几户合资购买、共同使用。
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Massive releases of methane from arctic seafloors could create oxygen-poor dead zones, acidify the seas and disrupt ecosystems in broad parts of the northern oceans, new preliminary analyses suggest.