Singleton
n. 一个, 独生子, 独身
🗣️ 情景例句
As a matter of fact, my whole family banks here.
事实上， 我们全家都是贵行的顾客。
No one (or man) is born wise or learned.
人非生而知之者。
It would be a waste of money to buy the IBM PC586.
买IBM586就浪费钱了。