What does "come across" mean?

To find something by chance To encounter unexpectedly while looking for something else.

How do you use "come across" in a sentence?

I came across this old photo. She came across an interesting article. You might come across some problems.

Phrasal Verb BritishAmericanAustralian ★★★★★ Very Common Neutral

Meaning: To find something by chance

偶然发现

Encontrar algo por casualidad

偶然見つける

우연히 발견하다

To encounter unexpectedly while looking for something else.

在找别的东西时意外遇到。

Encontrarse con algo inesperadamente mientras se busca otra cosa.

別のものを探しているときに予期せず出会うこと。

다른 것을 찾다가 예기치 않게 마주치다.

Base verb: come

Particle: across

Separable: No — the verb and particle stay together

I came across this old photo.
我偶然发现了这张老照片
Me encontré con esta foto antigua
この古い写真を偶然見つけた
이 오래된 사진을 우연히 발견했어.
She came across an interesting article.
她偶然看到一篇有趣的文章
Se encontró con un artículo interesante
彼女は面白い記事を偶然見つけた
그녀는 흥미로운 기사를 우연히 발견했다.
You might come across some problems.
你可能会遇到一些问题
Podéis encontraros con algunos problemas
いくつか問題に出くわすかもしれない
몇 가지 문제에 부딪힐 수도 있어.

Context: discovery, research

Tone: surprised

From crossing paths with something.

Era: Modern

Generation: All ages

Social background: Universal