tā / biǎo / miàn / shàng / dā / ying / hé / zuò / bèi / dì / lǐ / què / gěi / duì / shǒu / fàng / lěng / jiàn

他表面上答应合作，背地里却给对手放冷箭。

He agreed to cooperate on the surface but secretly stabbed his opponent in the back.