can only; obliged to do sth; to have no other choice[cedict]
去
qùㄑㄩˋ
to go; to leave; to remove; fourth tone of putonghua[cedict]
走
zǒuㄗㄡˇ
to walk; to go; to run; to move (of vehicle); to visit; to leave; to go away; to die (euph.); from; through; away (in compound verbs, such as 撤走); to change (shape, form, meaning)[cedict]