你是一座孤岛而我是上不了岸的潮
[nĭ shì yī zuò gū dăo ér wŏ shì shàng bù le àn de cháo]
Translates to 'you are an isolated island, while I am the wave that cannot reach the shore'. It describes a feeling of being unreachable or unrequited love, symbolizing someone who longs to be close to another person but feels separated by circumstances beyond control.