It is said to be hateful and painful. Jin Ping Mei (The Golden Lotus Plum): "It is only because of these bran noodles in the house that this heart-rending midnight consumes the people who can't sleep." October, 1981, No. 5: "But our people are like a heart-rending cone of lungs." ? In some places, "za xin" also refers to the stomach discomfort caused by eating too much hard or indigestible food, which is reflected to the chest area, so it is called "za xin".

1. zhā xīn (扎心).

2、造句：I swear! This is definitely the most heart-rending sentence I've ever seen!