剑桥词典the last part of something that is being done （事情的）最後一部分 It's taken three months , but we're on the home straight now. 到目前爲止已經花了3個月的時間，不過我們現在已經在做最後一部分了。 the last part of a race （賽跑的）最後堦段 返回 the home straight