walk all over
US /wɔk ɔl ˈoʊvər/
UK /wɔk ɔl ˈoʊvər/

1.
欺负, 占便宜, 任意摆布
to treat someone badly or without respect, especially by taking advantage of their kindness or weakness
:
•
Don't let him walk all over you; stand up for yourself!
别让他欺负你;为自己站出来!
•
She's too nice, and people tend to walk all over her.
她太好了,人们往往会欺负她。