Adverbials of manner or location in bèi sentences may precede either bèi or the verb. In the latter case, the adverbial becomes more emphatic:
月亮慢慢地被一片乌云遮住了。
yuè liàng màn màn dì bèi yī piàn wū yún zhē zhù le 。
The moon was slowly covered by a patch of black clouds.
那些调皮的孩子让校长(给)狠狠地批评了一顿。
nà xiē diào pí de hái zǐ ràng xiào zhǎng (gěi )hěn hěn dì pī píng le yī dùn 。
Those naughty children were severely criticized by the head teacher.
小女孩被消防队员从屋子里救了出来。
xiǎo nǚ hái bèi xiāo fáng duì yuán cóng wū zǐ lǐ jiù le chū lái 。
The little girl was rescued from the house by the firemen.
[1] Yip, P. C., Rimmington, D., Xiaoming, Z., & Henson, R. (2009). Basic Chinese: a grammar and workbook. Taylor & Francis.