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
You ordered enough for three or four people,but I'm not complaining.
你叫了够三到四个人吃的菜，但我毫不在意。
Where were you yesterday afternoon?
你昨天下午在哪儿？
After a time, we noticed a snake charmer with two large baskets at the other side of the square,
过了一会儿，我们注意到广场的那一边有一个带着两个大筐的耍蛇人，