双手紧握海枯石烂十指相扣天长地久
[shuāng shŏu jĭn wò hăi kū shí làn shí zhĭ xiāng kòu tiān zhăng dì jiŭ]
Holding Hands Tight Until the Sea Dries Up, Vowing Eternal Love. A romantic expression symbolizing a promise of everlasting love where lovers are inseparable no matter how much time passes or circumstances change.