什么是 chock?A block or wedge placed under something else, such as a wheel, to keep it from moving.Nautical A heavy fitting of metal or wood with two jaws curving inward, through which a rope or cable may be run.To fit with or secure by a chock: The plane's wheels were chocked and chained down. Nautical To place (a boat) on chocks.As close as possible: had to stand chock up against the railing.