a.轻松愉快的,无忧无虑的
同反义词同：[a.] blithe,blithesome,lighthearted,lightsome
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参考例句
She was annoyed at [with] his lighthearted attitude.
她对他那种若无其事的态度感到很讨厌.不适合
A short,lighthearted air or song.
小坎佐尼一支短小、轻松的曲子或歌不适合
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形容词解释：
carefree and happy and lighthearted
was loved for her blithe spirit
a merry blithesome nature
her lighthearted nature
trilling songs with a lightsome heart
[同] blithe,blithesome,lighthearted,light-hearted,lightsome
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