jetties怎么读？

There would be jetties outside the main wall for ships bringing supplies.主墙外边将有供停靠运送供应品的船只用的码头.Docks are generally made up of wharves aprons of docks jetties piers quays terminals , warehouses and offices.码头主要由码头前沿...

n.防波堤，码头( jetty的名词复数 )...