Plan B
noun/ˌplæn ˈbiː/
/ˌplæn ˈbiː/
[singular]- the thing or things somebody intends to do if their first plan is not successful
（第一方案不可行的情况下使用的）第二行动方案，次选方案，乙案 - If Plan A fails, go to Plan B.
假如第一方案失败了，就执行第二方案。 - It's a good idea to always have a plan B if your original plan falls through.
如果您最初的计划落空，最好始终制定备用计划。
- If Plan A fails, go to Plan B.