cheerful /ˈtʃiɚfəl/ adjective Learner's definition of CHEERFUL
[more cheerful; most cheerful]
1
a : feeling or showing happiness欢快的；高兴的 -
a cheerful face/person欢快的笑脸；开心的人
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She has a cheerful outlook on life.她的人生观积极乐观。
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He seems a little more cheerful today.他今天的心情似乎更好一些了。
b : feeling or showing that you are willing to do something without complaining心甘情愿的 2
a : causing good feelings or happiness令人愉快的 b : bright and pleasant to look at明亮欢快的；令人愉悦的
— cheerfulness
noun [noncount]