Subject + 遇上 + Object
遇上 (yùshàng) means "to encounter" or "to run into," often implying an unexpected or coincidental meeting with a person, event, or situation. It is similar to 遇到 but carries a slightly more colloquial tone. For example, 碰巧遇上流星雨 means "happened to encounter a meteor shower."
我在地铁上遇上了好几年没见的老同学。
Wǒ zài dìtiě shàng yù shàng le hǎo jǐ nián méi jiàn de lǎo tóngxué.
I ran into an old classmate on the subway whom I hadn't seen for years.
出门旅游最怕遇上坏天气。
Chūmén lǚyóu zuì pà yù shàng huài tiānqì.
The thing you worry about most when traveling is running into bad weather.
她刚到北京就遇上了一场大雪。
Tā gāng dào Běijīng jiù yù shàng le yī chǎng dà xuě.
She had just arrived in Beijing when she encountered a heavy snowfall.