backup planning

• 后备计划

backup planning的用法和样例：

例句

1. Tony updates Green on the three shooters that may have been hired as a backup plan to assassinate Palmer.
   托尼将最新情况告知格林，作为后备计划，也许有三名刺客被雇用来暗杀帕默。

词汇搭配

• back up (因积聚而)拥堵...