除……以外;只是(except(for),but):All (trains)~(~ing) one train arrived on time. 除了一列火车,所有的火车都准时到了。S~(S~ing) Saturday,every day was rainy. 除了星期六每天都下雨。She is a good worker~that she is quite often ill. 她是个好工人,只是经常生病。〖同〗except,but;
【辨异】save2 与except 和but的区别见BUT。