mark time 原地踏步；停顿
A：Why did we stop?B：No, we didn’t really stop. We just marked time.A：Marked time?B：Yeah, we have to pause until we get approval.甲：我们为什么停下来？乙：不，我们并没有真的停下来。我们只是原地踏步。甲：原地踏步？乙：是的。我们不得不暂时停下待命。
