Duality
n. 二元性\\n[化] 二象性; 双偶性
📖 牛津释义
duality
[U]
n.
🗣️ 情景例句
He is on another line right now.
他正在接另一个电话。
I'm dead!
死定了！
We had some shoes like those a month ago,but we don't have any now.
一个月前我们有这要的鞋。但是现在没有了。