Perpendicularity
n. 垂直, 直立\\n[机] 垂直
📖 牛津释义
perpendicularity
n[U].
🗣️ 情景例句
Good night, Harry.
再见。
Greatest genius often lies concealed.
大智若愚。
He gives the bank specimens of his signature,
他把自己签名的样本交给银行，