If the shell script USES the su command, a child shell will be spawned.

如果shell脚本使用了su命令，就会派生一个子shell。

youdao

Then he launched into an emotional recitation of a poem by Su Dongpo from the Song Dynasty.

然后，他开始背诵苏东坡的一段诗歌。

youdao

Dr Su said Widjaja was a "very good student" whose grades had slipped recently, but he was still considered above average.

苏校长说Widjaja是一名非常优秀的学生，近期学习成绩有所下滑，但仍然在中等偏上。

youdao

Lee Kyoung-su,a market analyst at Taurus Investment and Securities in Seoul, (Voice) He says markets are worried about the possibility of a second financial crisis, like the one that began in the United States last year.

VOA: standard.2009.11.27

The plane was a Russian SU-22, the news agency quoted a military official as saying.

BBC: Yemen fighter plane crashes into homes in Sanaa

The Sukhoi SU-35 is a single seat super maneuverable, acrobatic fighter plane.

FORBES: After A Decade Long Wait, China And Russia Ink 'Super Jet' Military Deal

Russia's initial response was to suspend talks on selling China the Su-33, a fighter with folding wings that can be used on aircraft carriers.

WSJ: China Clones, Sells Russian Fighter Jets