朝我开枪时记得对准心脏
[cháo wŏ kāi qiāng shí jì dé duì zhŭn xīn zàng]
Literally translates to ‘when you shoot at me remember to aim for my heart’. It's an emotionally intense sentence expressing willingness to sacrifice oneself. However, it may also contain a hint of sarcasm or playfulness, depending on the context in which it appears.