balistraria 的定义
plural bal·is·tra·ri·ae [bal-uh-strair-ee-ee]. /ˌbæl əˈstrɛər iˌi/.
- an opening, usually in the form of a cross, through which a crossbow could be fired.
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plural bal·is·tra·ri·ae [bal-uh-strair-ee-ee]. /ˌbæl əˈstrɛər iˌi/.