HSK 3
Fùmǔ duì háizi ruǎnyìng-jiānshī, xīwàng tā néng gǎidiào huài xíguàn.
The parents used both gentle and firm tactics, hoping the child would break his bad habits.
HSK 7-9
Jǐngchá ruǎnyìng-jiānshī, zhōngyú ràng xiányírén kāi le kǒu.
The police used a mix of soft and hard tactics and finally got the suspect to talk.