meddle
verb [ I ] disapproving uk/ˈmed.əl/ us/ˈmed.əl/
干涉，干预；管闲事
to try to change or have an influence on things that are not your responsibility, especially by criticizing in a damaging or annoying way
My sister's always meddling in other people's affairs. 我姐姐总是管别人的闲事。
People shouldn't meddle with things they don't understand. 自己不懂的事情，就不该去掺和。