demilune堡垒: fort; fortification半月形: half moon; halfmoon; half-moon shape; lunule; semi-lune半月,半月形,弧影: half moon半月；半月形。: half-moon弓形, 半月形, 半月形物: lune下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:半月形堡垒，即可在微信中查询翻译
