last-minute

 Longman Dictionary of Contemporary English 5++朗文当代英语 5++LDOCE 5++朗文 5++ˌlast-ˈminute ●○○ adjective [only before noun]  LASThappening or done as late as possible before something else happens 最后一分钟的，紧要关头的 a few last-minute changes to the script 讲稿在最后一刻的几处改动

Examples from the Corpus

last-minute• a last-minute decision

ˌlast-ˈminute adjectiveChineseSyllable  

else late as happening Corpus done or before as something possible

last-minute
ˌlast-ˈminute adjective [only before noun]
happening or done as late as possible before something else happens:
    a few last-minute changes to the script

last-minuteBrE /ˌlɑːst ˈmɪnɪt/ 🔊NAmE /ˌlæst ˈmɪnɪt/ 🔊 adjective [usually before noun] done, decided or organized just before sth happens or before it is too late 最后一分钟才完成（或决定、安排好）的；紧急关头的◆a last-minute holiday最后一分钟定下来的休假