Pick up the tab - pay the bill, pick up the bill
Many Chinese people are willing to pick up the tab when they invite friends to restaurants. 许多中国人在餐馆请客时比较愿意买单。
be willing to 愿意做....
Mr. Wang can well afford to pick up the tab. 王先生有足够的能力支付账单。
My father picked up the whole tab for the research. 我父亲承担了所有的研究费用。
