Singleton substitution
[计] 唯一替换
🧩 词语组成解析
n. 一个, 独生子, 独身
substitution
[ˌsʌbsti'tju:ʃən]
n. 代替;代用;替换;<化>取代（作用）;
🗣️ 情景例句
The case was dismissed because of insufficient evidence.
该案因证据不足而撤消。
To kick a boy
踢男孩
That's all right. Thank you. Goodbye!
好的。谢谢你，再见！