Shell reports that it will expand its Canadian oil-sands operations but elsewhere will focus on finding natural gas and not oil.
壳牌报告指出它将扩大在加拿大的油砂作业，但是在其它地方则会集中注意力寻找天然气而不是石油。
The oil sands in Canada and Venezuela are extensive, but the Canadian operations to convert the deposits into transportable oil consume large amounts of natural gas, which is in short supply.
加拿大和委内瑞拉的油砂数量比较大，但是加拿大将这些储藏转化成可运输的石油的工作耗费了大量的短缺天然气。
The oil sands in Canada and Venezuela are extensive, but the Canadian operations to convert the deposits into transportable oil consume large amounts of natural gas, which is in short supply.
加拿大和委内瑞拉的油砂数量比较大，但是加拿大将这些储藏转化成可运输的石油的工作耗费了大量的短缺天然气。
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