noun
two-stage plan; fallback plan; alternative up one's sleeve
Describes a strategy prepared in two steps, or having a backup plan ready. Often used in business, politics, or negotiations.
交渉が決裂した場合に備えて、二段構えの戦略を用意している。
We have a two-stage strategy ready in case the negotiations break down.
彼はいつも二段構えで物事を考える。
He always thinks with a backup plan in mind.