ratline

名词noun

1. 1(nautical, uncountable) The rope or similar material used to make cross-ropes on a ship. [from 14th c.]
2. 2(nautical) Any of the cross ropes between the shrouds, which form a net-like ropework, allowing sailors to climb up towards the top of the mast. [from 17th c.]
3. 3historical, often in the pluralA system of escape routes for Nazis and other fascists