rip.rap
n.（名词）A loose assemblage of broken stones erected in water or on soft ground as a foundation.乱石基，乱石扶墙：碎石块的松散堆集、或作为地基树立于水中或松软的土地上The broken stones used for such a foundation.乱石，碎石：用作这种地基的碎石v.tr.（及物动词）rip.rapped,rip.rap.ping,rip.raps To construct a riprap in or on.在…里堆乱石，在…上修砌乱石基To strengthen with a riprap.用乱石加固
来源：Reduplication of rap rap的重迭
