大步

large strides

see 大夫[dai4 fu5]

big; large; great / older (than another person) / eldest (as in 大姐[da4 jie3]) / greatly; freely; fully / (dialect) father / (dialect) uncle (father's brother)

surname Bu

a step / a pace / walk / march / stages in a process / situation

at a stride / taking large steps (while walking)