lockstep
/ˈlɒkstep/noun
mass noun
- a way of marching with each person as close as possible to the one in front紧密行进（行进队伍中与前面的人尽量靠近的行进方式）：
the trio marched in lockstep
这一伙三个人前脚接后脚地鱼贯而行
as adv. hundreds of shaven-headed youths march lockstep into the stadium.几百个剃光头的年轻人一个紧接着一个地走进了体育场。