1.(express pleasure to)祝贺；向…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。
2.(praise)称赞；赞赏；祝贺
I really must congratulate the organisers for a well-run and enjoyable event.活动办得井井有条、令人愉快, 我一定要对组织者表示赞赏。
We specifically wanted to congratulate certain players.我们特别想表扬几位选手。
3.to congratulate yourself
(consider clever or fortunate)为自己庆幸
Waterstone has every reason to congratulate himself.沃特斯通完全有理由为自己庆幸。