Perpendicularity
n. 垂直, 直立\\n[机] 垂直
📖 牛津释义
perpendicularity
n[U].
🗣️ 情景例句
I need to cancel that. We have had a last minute change of plans.
我要取消预约，我们临时改变计划了。
Why does only one sock get lost at a time?
为什么袜子只丢了一只呢？
Obtaining 'protection money' is not a modern crime.
榨取保护金"并不是一种现代的罪恶行径。