"I invited them to a restaurant"
1. 付款;偿还:pay back偿还(借款等回报 |payfor付款;偿还 |pay off还清(债款取得成功
2. 付款:pay back 偿还借款等 |payfor 付款 |pay off 偿清欠款等
3. 偿还;受到惩罚:pay back 偿还(借款等回报 . |payfor 偿还;受到惩罚 . |pay off 还清(债款) .
4. 付......的款:3)sendfor 派人去请(叫) | 4)payfor 付......的款 | 5)waitfor 等候