△behalf?(n.代表、利益)

on behalf of sb.

on sb.’s behalf

I wrote several letters on his behalf.

I am writing on behalf of my mother to express her thanks for your gift.

△urgent (adj.緊急的、迫切的)

It’s urgent, come quick!

Doctor, here is an urgent call/letter for you.

n. urgency 緊迫、急事

△be/feel + adj. + to have done

I’m glad to have been told the good news ahead of time.

I’m glad to have done a good deed for the people.