赫德福勋爵说了一两句话使他安心了。
When objects are left at what you think is at rest with no external agency acting on them, they all slide back towards the rear end of the plane.当物体掉在地上,你认为它们不受外力作用,保持静止时,它们却朝着飞机的尾部滚去。
All access control decisions rest with the administrator.所有访问控制决策取决于管理员。