I wish him joy of his dealing with the customer who had caused so much trouble before.他要去和那位曾搞出这么多麻烦的主顾打交道，我可真该向他道喜。When we announced our engagement, everyone congratulated us.我们宣布了订婚的消息，每个人都向我们道喜。I sent them a congratulatory note when their baby was born.他们孩子出生的时候我给他们寄去了简短的道喜信。