a soldier in the opponent 's territory which can advance , but not retreat
Chinese idiom, Pinyin is Gu ò h é Z ú Z ǐ. It means that pawns can only move forward, not backward in chess rules. But after crossing the river, you can walk horizontally, which is more powerful. From Liu Shaotang's wolf smoke.
The origin of Idioms
Liu Shaotang's "Langyan" 24: "rhetoric can not deceive the two old people, sweet words can not confuse the two old people, so flustered, closed his eyes, hands with a thumping chest, regret his adventure into the city, but has been riding a tiger, only to be a pawn."
Idiom usage
Metaphor can only move forward, not backward. How can we take care of others when we are both pawns and can't protect ourselves?
a soldier in the opponent 's territory which can advance , but not retreat
The heart of the vertebrae is full - chuí xīn dùn zú
try to make an ox drink by forcing his head into the water - niú bù hē shuǐ qiǎng àn tóu