וּבָנוּ֙ חָרְב֣וֹת עוֹלָ֔ם שֹׁמְמ֥וֹת רִֽאשֹׁנִ֖ים יְקוֹמֵ֑מוּ וְחִדְּשׁוּ֙ עָ֣רֵי חֹ֔רֶב שֹׁמְמ֖וֹת דּ֥וֹר וָדֽוֹר׃
他們要重建自古以來的廢墟，修復先前荒涼的地方；他們要重建荒廢的城邑，就是世世代代荒涼的地方。
Ibn Ezra
עולם Of old.6עולם has here the meaning a very long time; it means usually for ever; but this is not applicable here.
Ibn Ezra
ראשנים Of former generations.7I. E. adds the word דורים to make it clear, that the adjective ראשנים is not to be connected with חרבות since the latter is feminine, while the former has the masculine termination; but with the word דורים, which is either to be supplied or is implied in the adjective דאשנים.