Particularly, my team have a Bonobo git and we must use pull request as a important part of workflow but I can't pull request in Bonobo git even by command, what should I do now? Thanks!
"Pull requests" are not a feature of Git, they're a feature of sites like Github, and Bonobo doesn't have that sort of thing.
Commands like git pull work fine with Bonobo, but that's not a "pull request".