happy-go-lucky
adjective uk/ˌhæp.i.ɡəʊˈlʌk.i/ us/ˌhæp.i.ɡoʊˈlʌk.i/
乐天的,无忧无虑的
A happy-go-lucky person does not plan much and accepts what happens without becoming worried.
Synonyms: carefreedevil-may-carefreewheeling
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