点击下方单词,选择对的这个单词
名词
1. defensive structure consisting of walls or mounds built around a stronghold to strengthen it
Synonym: fortification
2. military supplies
Synonym: ordnanceordnance store
3. weapons considered collectively
Synonym: weaponryarmsimplements of warweapons system
多通过句子记忆单词,而不是单独死记硬背。