break one's neck 拼命地去完成一项工作，尽快地赶到某一个地方

　　I'm breaking my neck to finish all the papers.

　　我现在正在拼命地把论文写完。

　　I had to break my neck to get to Mike's party at seven.

　　我不得不拼了命赶去麦克七点的聚会。

　　疯狂练习吧！