他家在牛津郡有一座乡间宅第。His family have a country seat in Oxfordshire.18世纪的乡村宅第an 18th century country mansion那是典型的英式庄园宅第。It was the quintessence of an English manor house....

“宅第”的拼音为：zhái dì...

“宅第”的英语可以翻译为：mansion，big house ...