do honor to

1. 向……表示敬意

All the kings of smaller countries did honor to him.

所有小国的国王都向他致敬。

do the honors

1. 尽主人之谊

You do the honors and pour out the tea.

你尽一下主人之谊, 给客人倒茶。

in honor bound

1. 道义上应该

You're in honor bound to lend him money when he did the same for you.

他曾借钱给你, 道义上现在你应借钱给他。