Irreplaceableness
n. irreplaceable（不能恢复原状的）的变形
🗣️ 情景例句
Say, don't I know you from somewhere?
我是不是在哪里见过你？
He who is ashamed of asking is ashamed of learning.
耻于问者耻于学。
Maybe some folk songs to start with?
先演奏些民歌吗？