bǐrú huàn chéngshì, jì qīdài yòu hàipà; péngyǒu líkāi, jì tì tā kāixīn yòu shěbùdé

比如换城市，既期待又害怕；朋友离开，既替他开心又舍不得。

For example, moving to a new city is both exciting and scary; when a friend leaves, you are both happy for them and reluctant to let them go.