I can't stay for long as I have an appointment in 20 minutes' time.

20分钟以后我还有一个约会，所以我不太呆久了。

youdao

He done gone off with a woman and made me come but she ain't going to stay for long.

他和一个女人跑了，不过那个女人也不会跟他待多久的。

youdao

Don't stay out in the sun for too long—you can't be too careful.

别在太阳底下待得太久，你得尽量小心。

《牛津词典》

Also,the root can stay in the ground for as long as three years, so it can be harvested as needed.

VOA: special.2010.06.08

He done gone off with a woman and made me come but she ain't going to stay for long."

他和一个女人跑了,不过那个女人也不会跟他待多久的“

耶鲁公开课 - 1945年后的美国小说课程节选

" And-- "How long are you going to stay happy for?"

你们的快乐会持续多久“

哈佛公开课 - 幸福课课程节选

These elders, many of whom may have nowhere else to go, can stay for as long as a few months, though some may stay for just a few days.

FORBES: A Right Way and Wrong Way to Confront Elder Abuse

The Rays sent him back to the minors for additional seasoning, but don't expect him to stay down for long.

FORBES: Sports

Airfare notwithstanding, don't expect all the countries on our list to stay cheap for long.

FORBES: Magazine Article