HSK 5 · noun · Practice
背后
behind; at the back; behind the scenes
他在背后帮助过我们。
Tā zài bèihòu bāngzhùguo wǒmen.
He has helped us behind the scenes.
这件事一定有人在背后搞鬼。
Zhè jiàn shì yídìng yǒu rén zài bèihòu gǎoguǐ。
Someone must be playing tricks behind the scenes on this matter.
这件事背后一定有隐情。
Zhè jiàn shì bèihòu yídìng yǒu yǐnqíng。
There must be something hidden behind this matter.