safety-net
柯林斯词典
1. N-COUNT A safety net is something that you can rely on to help you if you get into a difficult situation. 安全保障
Welfare is the only real safety net for low-income workers. 福利是低收入工人們惟一真正的安全保障。
2. N-COUNT In a circus, a safety net is a large net that is placed below performers on a high wire or trapeze in order to catch them and prevent them being injured if they fall off. (馬戯團襍技表縯使用的) 安全網
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