gold-plated
/ˈgəʊldˌpleɪtɪd/adjective
1- covered with a thin layer of gold镀金的：
a gold-plated tiepin.
镀金的领带别针。
1.1
- figurative likely to prove profitable; secure〈喻〉可能有利可图的; 安全的：
houses are no longer the gold-plated investment they were.
购房不再像过去那样是有利可图的投资了。