[钻牛角 / 鑽牛角, zuān niú jiǎo, ㄗㄨㄢ ㄋㄧㄡˊ ㄐㄧㄠˇ]lit. honing a bull's horn; fig. to waste time on an insoluble or insignificant problem; to bash one's head against a brick wall; a wild goose chase; a blind alley; to split hairs; same as 成语 saw 鑽牛角尖|钻牛角尖[Add to Longdo]
to make a phone call; to call [ Am. ]; to phone; to ring (up) [ Br. ]; to telephone | calling; phoning | called; phoned | he/she calls; he/she phones | I/he/she called; I/he/she phoned | he/she has/had called; he/she has/had phoned | to speak to sb. on the phone | to speak to each other on the phone[Add to Longdo]