朋友“请客”有学问，否则“请客”变“施舍” It’s all on us

1. I just ran into Ross and Chandler downstairs, and they think we should go 

    out and celebrate.

    run into sb  遇见某人

    celebrate  （v）庆祝

    They are going to celebrate their anniversary.

2. It’s all on us. Our treat. 

    be on sb

    The drinks are on me.

3. It’s a nice gesture, but it just feels like charity. 

    gesture 表示

    charity  慈善；施舍；救济