3.castles in the airBELIEVEplans or hopes that you have that are unlikely ever to become real 空中楼阁,异想天开,幻想
Examples from the Corpus
castles in the air• That, says McKinsey, is because they spend money where it is needed rather than on grandcastles in the air.• Hugh Bawn's high-techcastles in the air.
castle ♦︎ tower ♦︎ fort ♦︎ fortress ♦︎ stronghold ♦︎ garrisonThese are all words for a place that protects people or an area from attack.这些词均表示防御攻击的城堡、堡垒、要塞。PATTERNS AND COLLOCATIONS 句型和搭配◆an old / ancient castle / tower / fort / fortress / stronghold◆a medieval castle / tower / fortress / stronghold◆a Roman fort / fortress / garrison◆a ruined castle / tower / fort / fortress◆a mountain fortress / stronghold◆to build a castle / tower / fort / fortress / stronghold / garrison■castle [countable] a large strong building with thick high walls, built in the past in order to defend an area from attack城堡;堡垒◆The ruins of an ancient castle stand to the west of the town.古堡的遗迹位于城西。■tower [countable] a tall narrow building or part of a building, especially of a castle or church塔;建筑物的塔形部分;(尤指城堡或教堂的)塔楼◆The castle is rectangular in shape, with a tower at each corner.城堡呈长方形,每个角各有一个塔楼。■fort [countable] a building or buildings built in order to defend an area against attack要塞;堡垒;城堡◆Evidently a medieval castle had been built on the site of an Iron Age fort.显然,一座中世纪城堡就建在一个铁器时代堡垒的旧址上。■fortressˈfɔːtrəs; NAmEˈfɔːrtrəs [countable] a building or place that has been strengthened and protected against attack, especially a large, permanent military structure that often includes a town堡垒;要塞;设防的地方(尤指大型的永久性军事建筑,常包括城镇在内)◆The medieval fortress town is enclosed by four miles of ramparts.这一中世纪设防城镇由4英里长的城墙围着。◆Fear of terrorist attack has turned the conference centre into a fortress.由于害怕恐怖分子袭击,会议中心已经变成了一座堡垒。■strongholdˈstrɒŋhəʊld; NAmEˈstrɔːŋhoʊld [countable] a castle or place that is strongly built and difficult to attack堡垒;要塞;据点◆The castle was an important royal stronghold for hundreds of years.这座城堡曾经作为重要的皇家要塞达数百年之久。■garrison [countable]buildings in a town or fort that a group of soldiers live in, in order to defend the town or area卫戍区;驻防地◆A number of Roman garrisons are still standing today.一些古罗马部队驻防地至今仍存。