He marched into my office without so much as a by your leave.他未经同意就大模大样地走进我的办公室。Using them without asking permission is a bit of a liberty, to put it mildly.未经同意擅自使用这些东西,说得轻一些,有点失礼。It is unthinkable that anyone would dare to enter the Control Area without permission.很难想象有人未经同意胆敢进入控制区域。