unrenewable造句
Booksonthatshelfareunrenewable.Asanunrenewableresource,farminglandhastobemadehighlyefficientuseof.Coal,petroleumandnaturalgasareunrenewableresources,soitisimportanttoimproveenergyutilizationandsavemin...
Booksonthatshelfareunrenewable.Asanunrenewableresource,farminglandhastobemadehighlyefficientuseof.Coal,petroleumandnaturalgasareunrenewableresources,soitisimportanttoimproveenergyutilizationandsavemin...