bygone

n.过去的

by reason that, by request, by the moment, by the name of, by the same token, by the standards of, by the way, by turns, by virtue of, by way of, by worthy of, by yourself, by-election, by-law, by-play, by-product, by-road, bye, bye-bye, bye-byes, bygones, byline, bypass, byproduct, Byron, bystander, byte, byway, byword, C, C and W, C of E, C, c, C-in-C, c., C. and F., c/o, c/s, CAA, cab,