相关单词同义词velocity, tower, consolidation, speed, 近义词 fort 堡垒, speed 速度, tower 塔, deep 深的, celerity 敏捷, stronghold 要塞, fortress 堡垒, castle 城堡, citadel 城堡, refuge 避难, retreat 撤退, fortification 防御工事（尤指堡垒、要塞..., redoubt 堡垒, secureness secure的名词形式..., fixedness 固定, swiftness 迅速, fixity 固定性, fixture 固定物临近词Fasti, fast, fast frequency, faster reading, fast-growing, fast level set, fasting bridge, fast boot mode, fast prototype, fast algorithm, fast green FCF, Fast rendering相似词fasten on/upon sth, fastener, fastening, fastidious, fat, fat bike, fat cat, fat chance idiom, 返回 fastness