2.SECRETa well-kept secret is known only to a few people 〔秘密〕严守的
Examples from the Corpus
well-kept• Our old house, now covered with ivy, still looked pretty and well-kept.• I loved the orderliness of their little bungalow, and their well-kept garden.• The hotel has a new indoorpool leading directly on to the well-kept gardens with tabletennis and sun-bathing lawns.• It was one of those large affairssometimes known as colonial, with well-kept grounds stretching out in all directions.• Visitors should tour the palace, but don't forget the well-kept grounds -- well worth a visit.• Precisely what was said between them to prompt the scuffle remains a fairly well-kept secret, but conditions certainly were incendiary enough.• Her well-kept secret finally was revealedTuesday.• The whereabouts of the horsehormonefarms and the numbers of animals involved are extraordinarily well-kept secrets.• From its registration number it was only three years old, and it looked well-kept, the front tyres were new.