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
Well, I don't think it's anything serious.
嗯，我想没有什么严重的。
Dogs that bark at a distance bite not at hand.
远处叫得凶的狗，不会近身来咬人。
We'll be taking quotations next month.
我们将在下个月接受报价。