adj.要使颈骨折断似的，非常危险的...

Jack drove to Mayfair at breakneck speed.杰克驾车向梅费尔疾驶。to drive, etc. at breakneck speed亡命飞车等How many time that I said that he could breakneck?有多少次我不是说他这样会送了小命?...

breakneck的音标：breakneck的英式发音音标为：['breɪknek]breakneck的美式发音音标为：['brekˌnɛk]...