請客
play the host;stand treat;entertain guests
這頓飯我～。The dinner is my treat.or:Let me foot the bill./革命不是～吃飯a revolution is not a dinner party/用公款～吃飯wining and dining out of public funds/～吃飯 give a dinner for guests/～送禮give dinner parties and gifts;entertain guests with lavish dinners and give them generous gifts