谁能把初中的所有介词的用法,例句帮我整理一下啊答:/a place。from表示“来源、免于”等:borrow from向…借, choose from选自, excuse from免除, keep from阻止做,prevent from不准做, protect from不受…之害, receive from收到,remove from移动;除去, save from保全;拯救, separate from分离开来,stop from阻止。例如: He was excused from attendance at the...