He dropped out of junior high school.

他初中辍学了。

《柯林斯英汉双解大词典》

He has dropped out of active politics.

他已不再积极参政了。

《牛津词典》

He'd dropped out of high school at the age of 16.

他16岁时就从高中退学了。

《柯林斯英汉双解大词典》

As a young man, Red Adair dropped out of high school to help support his family.

VOA: special.2009.03.22

Pressure has dropped out of the picture completely here. So there is no p dependence here.

理想气体的H只是温度的函数,这对于真实气体来说是。

麻省理工公开课 - 热力学与动力学课程节选

I don't know, I dropped out of public accounting, so maybe that means I am one of the boring ones, who knows?

我也不清楚，后来我就退出公共会计了，或许这意味着我是个无聊的人，谁知道啊？

会计学很有意思 - SpeakingMax英语口语达人

In both cases, the tornadoes dropped out of the sky just west of Shelley's neighborhood.

CNN: One block, two tornadoes: Life in the crosshairs

But Congress started cutting the reimbursement levels and several health plans dropped out of the program.

FORBES: Improving Ryan's Medicare Reform Plan

"He looked in the mirrors and it just dropped out of sight, " Cynthia Scott said.

NPR: Feds Look For Temporary Fix After I-5 Collapse