七秒钟的记忆祗有你
[qī miăo zhōng de jì yì zhī yŏu nĭ]
It means 'Only you exist in my seven-second memory'. This refers to the brief memory span but emphasizes that despite this limitation, the other person is significant and occupies the entire short period of memory, indicating strong feelings for the person who is constantly on one’s mind even in limited times.