phrase to (promise to) marry: 答应结婚，订婚;结婚 What could be more romantic than plighting your troth on a deserted beach? While her best friend played the harp, Emma plighted her troth to Graeme. A record number of couples have plighted their troth at Gretna Green this year. She was set to plight her troth to a local landowner. It was at around that time that Rosemary and the Brigadier had plighted their troth. Compare