自由自在

自由自在 [zì yóu zì zài]

1. ■ take one's ease; be one's own man; able to do anything of one's own free will; at liberty; at one's ease; be contented and happy wherever one may be; comfortable; free and unrestrained; free and easy; (as) free as the wind; in a state of bliss; leisurely and carefree; perfectly free without restraint; without the least worry:

那男孩坐在那里，自由自在地玩着玩具。 The boy sat there, playing his toy leisurely and carefree.