Jiàqī lǐ, tā zòngqíng wánlè, wàngquè le suǒyǒu fánnǎo.
During the holiday, she let herself go and forgot all her worries.
Tips
usage
纵情 combines 纵 (to let loose / release) and 情 (feeling / emotion). It means giving full rein to one's feelings — usually in pursuit of pleasure, art, or passion. It can be neutral-to-positive, but occasionally implies excess or lack of restraint.