Meaning of wèn hòu:
问候
to give one's respects; to send a greeting; (fig.) (coll.) to make offensive reference to (somebody dear to the person to whom one is speaking)
Tā ràng wǒ tì tā wèn hòu suǒyǒu de jiārén.
他让我替他问候所有的家人。
He asked me to give his respects to all the family members.
Wǒ xiǎng xiàng nǐ biǎoshì zuì chéngzhì de wènhòu.
我想向你表示最诚挚的问候。
I want to send you my sincerest greetings.
Tā dàizhe wēixiào xiàng wǒ biǎoshì wènhòu.
他带着微笑向我表示问候。
He greeted me with a smile.