hedges
A hedge is a row of bushes or small trees, usually along the edge of a lawn, garden, field, or road.
Something that is a hedge against something unpleasant will protect you from its effects.
Gold is traditionally a hedge against inflation.
购置黄金是应对通货膨胀的传统保值措施。
hedge one's bets
If you hedge your bets, you reduce the risk of losing a lot by supporting more than one person or thing in a situation where they are opposed to each other.
The company tried to hedge its bets by diversifying into other fields.
该公司试图通过同时开展其他领域内的业务来规避风险。
hedges , hedging , hedged
If you hedge against something unpleasant or unwanted that might affect you, especially losing money, you do something which will protect you from it.
You can hedge against illness with insurance.
你可以买保险以备治疗患病之需。