keep back

基本解释

Howsomever, these gamisters do certainly keep back their milk to-day.
不过，今天这些犟脾气的奶牛肯定要回扔了。
The new method introduced in the city's downtown area requires traffic wardens to pull a rope across the pavement when the pedestrian's red light is on, to keep back pedestrians and bicyclists.
这一新举措在该市城区实行，要求交通协管员在行人红灯亮起时拉起绳子阻断人行道，以阻止行人和骑自行车的人通过。
But the fire could not keep back the policemen.
但火焰不能阻挡警察们的步伐。

They got back on the train and keep going until they reached the end of the line.
So let's take our one model that we keep going back to Equation of state, and just see how it works.
我们回到经常使用的理想气体模型,或者说状态方程。
麻省理工公开课 - 热力学与动力学课程节选
STUDENT: PROFESSOR: Yes, thank you. All right, it is constant. You keep sitting back there where I can't get to you. Thank you very much.
学生：【不解中】,教授：是的，是常数，如果，就是常数,你坐在那儿一动不动我没法找到你。
麻省理工公开课 - 计算机科学及编程导论课程节选

And he'll veto it, send it back, just keep going back and forth like that.
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