What does "build up" mean?

To accumulate gradually For problems or issues to increase over time.

How do you use "build up" in a sentence?

Stress has been building up. The problems built up over years. Don't let issues build up.

Phrasal Verb BritishAmericanAustralian ★★★★★ Very Common Neutral

Meaning: To accumulate gradually

（问题）逐渐积累

Acumularse gradualmente

（問題が）蓄積する、溜まる

(문제가) 쌓이다, 축적되다

For problems or issues to increase over time.

问题或事务随着时间增加。

Cuando los problemas o asuntos aumentan con el tiempo.

問題や課題が時間とともに増えること。

문제나 이슈가 시간이 지나면서 늘어나다.

Base verb: build

Particle: up

Separable: No — the verb and particle stay together

Stress has been building up.
压力一直在积累
El estrés se ha ido acumulando
ストレスが溜まっている
스트레스가 쌓이고 있다.
The problems built up over years.
问题积累了好几年
Los problemas se acumularon durante años
問題は何年もかけて蓄積した
문제가 수년에 걸쳐 축적되었다.
Don't let issues build up.
不要让问题积累
No dejéis que los problemas se acumulen
問題を溜め込まないで
문제를 쌓아 두지 마.

Context: accumulation, gradual, stress

Tone: concerned

From building something layer by layer.

Era: Modern

Generation: All ages

Social background: Universal