Structure with 就 meaning “only have”
Subject + 就 + ( 只 ) + Verb
Meaning:
就 can mean “only, or only have”. When using it you can add 只 and 只有, or you can leave it out.
Examples:
我 就 认识 一 个 中国 人。
Wǒ jiù rènshí yī ɡè zhōnɡɡuó rén
I only know one Chinese person.
Structure with 就 meaning “just one”
就 + single things or persons
Meaning:
就 can also be used to express one person or thing, similar to how we say in English “just one person” or “just one left”. It is often paired with 一个 or something like that
Examples:
这 件 事 就 我 一 个 人 知道。
Zhè jiàn shì jiù wǒ yī ɡè rén zhīdào
I’m the only person that knows about this.
