to deceive someone for a long time about what you are really intending to do
长期哄骗（某人）；敷衍（某人）

例句：

She’s been promising to pay back the money for six months, but I think she’s just stringing me along. 她6个月来一直答应说要还钱，但我猜她只不过是在敷衍我而已。

He strung her along for years, saying he’d marry her and divorce his wife. 他哄了她有好几年，说他会和妻子离婚然后娶她。