unrenewable的精選

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用“unrenewable”造句大全，unrenewable造句

用“unrenewable”造句大全，unrenewable造句

2017-12-30
Booksonthatshelfareunrenewable.Asanunrenewableresource,farminglandhastobemadehighlyefficientuseof.Coal,petroleumandnaturalgasareunrenewableresources,soitisimportanttoimproveenergyutilizationandsavemin...