沆 ㄏㄤ ˋ hàng 瀣 ㄒㄧㄝ ˋ xiè 一 ㄧ yī 气 ㄑㄧ ˋ qì 沆 ㄏㄤ ˋ hàng 瀣 ㄒㄧㄝ ˋ xiè 一 ㄧ yī 氣 ㄑㄧ ˋ qì to act in collusion (idiom); in cahoots with villains will look after one another