used to imply in an ironic or resigned way that someone's wishes or expectations are unlikely to be fulfilled
(用于讽刺或无奈地暗示某人的愿望不可能实现)那你真的走大运了;但愿你福星高照
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‘A shirt would be nice.’‘You'll be lucky .’ “要是有一件衬衫就好了。”“看你的好福气啦。