Quadrupleness
四重性
🗣️ 情景例句
How long?
多久？
A plant may produce new flowers; man is young but once.
花有重开日，人无再少年。
When my mother had died after a tragic accident, he did not quickly recover from the shock and loneliness.
当时我母亲在一次事故中惨死，父亲未能很快从悲痛与孤独中恢复过来。