vt.祝贺；庆祝

Let me congratulate you. 请允许我向您表示祝贺。

May I congratulate you? 请允许我向您表示祝贺。

I congratulate you on your great discovery. 我祝贺你的伟大发现。

I congratulated myself on my narrow escape. 我庆祝自己死里逃生。

We congratulated him on his birthday. 我们向他庆祝生日。

congratulate作“祝贺,道喜”解时,须以被祝贺的人作直接宾语,以介词on或upon引出祝贺的原因。