n.守场员， 外场手，守场员（接手）的位置，增援， 加强
v.止住；支持；作守门员

The backstop will only be triggered if no trade deal is agreed by the end of 2020.
- 如果到2020年底仍未达成贸易协议，后备方案将被触发。
The government's plan includes a backstop to prevent a hard border in Ireland.
政府的计划包括一项后备措施，以防止爱尔兰出现硬边境。
A backstop solution was needed to ensure stability during the transition period.
过渡期间需要一个临时解决方案来确保稳定。
The backstop measure was temporary and aimed at stabilizing the financial system.
后备措施是暂时性的，旨在稳定金融系统。
The backstop goalkeeper saved two crucial penalties in the shootout.
替补守门员在点球大战中扑出了两个关键的点球。
The company has put a backstop in place to protect against potential losses.
公司已经采取了预防措施，以防潜在损失。
They need a political backstop to guarantee peace and prosperity on the island.
他们需要政治保障，以确保岛上和平与繁荣。
The central bank serves as a backstop lender to prevent systemic financial collapse.
中央银行作为最后贷款人，以防系统性金融危机的发生。
The backstop policy ensures that all students have access to basic education.
后备政策保证所有学生都能接受基础教育。
The safety net program acts as a backstop for families facing economic hardship.
社会保障项目为面临经济困难的家庭提供了最后的安全网。