致意: give one's regards; present one's compliments; send one's greetings 短语和例子点头致意 nod a greeting; 挥手致意 wave a greeting; 他向主席致意后开始了他的演说。 addressing the chairman, he began his speech
招手致意: wave to sb. in acknowledgement; wave one's greetings; wave back in acknowledgement
