Duality
n. 二元性\\n[化] 二象性; 双偶性
📖 牛津释义
duality
[U]
n.
🗣️ 情景例句
How wonderful to meet you again!
又一次见到您真是太高兴了！
The best teachers of humanity are the lives of great men.
启迪人性最好的导师是伟大人物的生活。
Normal people tend to forget this process unless and until they are reminded of it.
衰老的过程，不经提起，正常人容易忘记；一经提醒，才会记起。