Meaning of zhī wài:
zhī wài
之外
Preposition
outside; excluding
Gōngzuò zhī wài, wǒmen chángcháng yīqǐ yùndòng.
工作之外,我们常常一起运动。
Outside of work, we often exercise together.
Chúle zhōumò zhīwài, wǒ měitiān dōu gōngzuò.
除了周末之外,我每天都工作。
Excluding weekends, I work every day.