dì jiǔ tiān cháng
enduring while the world lasts (idiom, from Laozi); eternal
for ever and ever (of friendship, hate etc)
also written 天長地久|天长地久
Yǒu yì dì jiǔ tiān cháng
Auld Lang Syne, Scottish song with lyrics by Robert Burns 羅伯特·伯恩斯|罗伯特·伯恩斯[Luo2 bo2 te4 · Bo2 en1 si1], sung to mark the start of a new year or as a farewell
also rendered 友誼萬歲|友谊万岁[You3 yi4 wan4 sui4] or 友誼天長地久|友谊天长地久[You3 yi4 tian1 chang2 di4 jiu3]