英语
西班牙语
单语范例（未经PONS编辑处理）
To that end, he had the place protected by ditches, border fortifications, customs posts and a fortified redoubt.
en.wikipedia.org A series of smaller redoubts protected these two forts.
en.wikipedia.org It was formed by a series of reductos (redoubts or strongholds), numbered from 1 to 10 and located at approximately 800 metre intervals.
en.wikipedia.org Valuable assets should be parked in sand-bagged redoubts until they are launched, preventing anti-materiel attacks.
en.wikipedia.org There are a number of late 18th century redoubts scattered throughout the forest.
en.wikipedia.org