Oath of the Peach Garden, sworn by Liu Bei 劉備|刘备[Liu2 Bei4], Zhang Fei 張飛|张飞[Zhang1 Fei1] and Guan Yu 關羽|关羽[Guan1 Yu3] at the start of the Romance of Three Kingdoms 三國演義|三国演义[San1 guo2 Yan3 yi4]
Definitions (Wiktionary)
phrase, idiomatic
to become sworn brothers
phrase, idiomatic
to join forces
備戰2008年北京奧運會,中日韓棒球隊“桃園三結義”
备战2008年北京奥运会,中日韩棒球队“桃园三结义”
bèi zhàn 2008 nián běi jīng ào yùn huì , zhōng rì hán bàng qiú duì “ táo yuán sān jié yì ” The baseball teams of China, Japan and Korea join forces in preparation for the 2008 Olymipics in Beijing