When Joe Biden scrapped a permit for the huge Keystone XL pipeline just hours after entering the White House last year, a death knell seemed to be ringing for Canada’s oil sands, by far the largest supplier of foreign oil to the US.
去年,乔•拜登(Joe Biden)在入主白宫仅数小时后,就取消了Keystone XL大型输油管道的建设许可时,加拿大油砂的丧钟似乎正在敲响。加拿大是美国最大的外国石油供应国。
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