大姨妈也有离开的时候
[dà yí mā yĕ yŏu lí kāi de shí hòu]
In Chinese culture, '大姨妈' is an informal slang term for menstruation but this phrase goes further. Here it humorously suggests that even unavoidable, recurring things must eventually leave, indicating that everything has an end or that patience has limits even for inevitable situations.