liquidity bridge

A liquidity bridge uses pooled assets to offer fast cross-chain transfers without the rollup's challenge period.流动性桥使用汇集资产来提供快速的跨链转账，而无需经历 rollup 的挑战期。

Liquidity bridges charge small fees and carry smart contract risk, but avoid the multi-day wait of native bridges.流动性桥收取少量费用并带有智能合约风险，但避免了原生桥长达数天的等待。