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Từ điển Oxford Advanced Learner 8th
safety net
ˈsafety net [safety net safety nets] BrE NAmE noun
1. an arrangement that helps to prevent disaster if sth goes wrong
•a financial safety net
•people who have fallen through the safety net and ended up homeless on the streets
2. a net placed underneath ↑acrobats, etc. to catch them if they fall
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