英汉词典

1. 欢快的;高兴的;兴高采烈的
    Someone who is cheerful is happy and shows this in their behaviour.

cheerful的解释

    e.g. They are both very cheerful in spite of their colds...
           他们俩虽然感冒了，可都兴高采烈的。
    e.g. Jack sounded quite cheerful about the idea.
           杰克好像对这个想法很高兴。