The bǎ (把) construction is a device which uses the preposition bǎ (把) to move a definite-referenced object to a position before the main verb. In a less colloquial and more formal style, jiāng (將) may be used in the place of bǎ (把). The basic sentence structure in mandarin is formed in a SVO (subject-verb-object) word order, but a bǎ (把) sentence employs a different word order, as schematized in the following :
(Subject) + bǎ (把) /jiāng (將)+ Object + verb phrase
tā bǎ /jiāng shǒu jī fàng jìn le shū bāo lǐ.
He put his phone in the schoolbag.
bǎ /jiāng tā qǐng guò lái ba.
Bring him over.
This structure expresses the influence of an action upon the object. In imperative sentences, the subject is often omitted. Compared with jiāng (將), bǎ (把) sometimes is more emphatical in mood and tone under specific contexts. Therefore, jiāng (將) is used more when the style is formal.
fēng tài dà le, kuài bǎ mén guān shàng!
The wind is too strong, close the door quickly!
gōng sī jué dìng jiāng yī bàn de gǔ fèn mài diào.
The company decided to sell half of its shares.
As a preposition, jiāng (將) also expresses the meaning “with” in some idioms.
jiāng xīn bǐ xīn
Feel for others.
ēn jiāng chóu bào
bite the hand that feeds one.
Yip Po-Ching, Don Rimmington - Chinese_ A Comprehensive Grammar-Routledge (2003)