split ring

ring with its ends not joined but closely overlapping, as used for keeping keys on 叠口环（如钥匙圈）.

splatter, splay, splay-footed, spleen, splendid, splendidly, splendiferous, splendor, splendour (US splendor), splenetic, splice, splicer, splint, splinter, splinter group, split, split infinitive, split peas, split personality, split pin, split second, split shift, split ticket, split up, split-level, splitting, splotch, splotch (Brit also splodge), splurge, splutter, spoil, spoil-sport, spoilage, spoiler, spoils, spoils system, spoke, spoken, spokeshave, spokesman,