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文字稿:
Meet the latest recruit in the war against global warming.
This Argentinian bull has a device attached to its back to prevent methane escaping when it belches.
The gas is collected from the bull's stomach through a small pipe and compressed in a canister. Every day one animal produces enough fuel to drive a car one kilometre.
According to the UN, 18% of greenhouse gas emissions are produced by livestock.
Vocabulary 詞匯:
methane 甲烷，沼氣
belches 打嗝（第三人稱單數(shù)）
canister 金屬罐子
greenhouse gas 溫室氣體
livestock 家畜
人氣排行
