基本解释adv.自由自在地；无忧无虑地同根派生 lightheartedly相关词英汉例句用作副词 (adv.)Let us create a conservation-minded campus, in order to have a nice environment to study lightheartedly.让我们创建一个节约型校园，的在这样美好的环境下无忧无虑地学习。lightheartedly更多例句