单词 ravelin 释义 ▪ I. ravelin1|rvln|Also 6 rau-, reu-, revelin, rav'lin, 7 ravellin, (8 rablin); 6 rauelline, -yne, 7–8 raveline; 6–7 raveling, (7 -iling, 9 -elling).[a. F. ravelin (16th c., Rabelais), a. It. rav-, revellino (Florio), now rivellino =...