stick up for something/someone
phrasal verb with stick verb uk/stɪk/ us/stɪk/ stuck | stuck
informal
C1 支持，捍卫，维护（尤指受到批评的人或物）
to support or defend someone or something, especially when that person or thing is being criticized
I can stick up for myself. 我能维护我自己。
It's sweet the way he sticks up for his little brother. 他维护他小弟弟的样子真讨人喜欢。