| 单词 | happy-go-lucky |
| 例句 | happy-go-lucky adjective •what's wrong with letting your children be happy-go-lucky? easygoing, carefree, casual, free and easy, devil-may-care, blithe, nonchalant, insouciant, blasé, unconcerned, untroubled, unworried, lighthearted, laid-back. ANT anxious. |
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