過河拆橋
guò hé chāi qiáo
Meaning:
lit. to destroy the bridge after crossing the river (idiom)
fig. to abandon one's benefactor upon achieving one's goal
Danger past, God forgotten.
過（guò）：to cross
河（hé）：river
拆（chāi）：to tear down, dismantle
橋（qiáo）：bridge
