motte-and-bailey castle
US /ˌmɑːt ən ˈbeɪli ˈkæsl/
UK /ˌmɑːt ən ˈbeɪli ˈkæsl/

1.
土墩城堡
a medieval European castle design consisting of a fortified mound (motte) with a wooden or stone keep on top, and a lower enclosed courtyard (bailey) surrounded by a palisade and ditch
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Many early Norman castles in England were of the motte-and-bailey design.
英格兰的许多早期诺曼城堡都是土墩城堡设计。
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The archaeological dig revealed the remains of a large motte-and-bailey castle.
考古发掘揭示了一座大型土墩城堡的遗迹。