erwidern in English:

Robert is head over heels in love with Mary but she doesn't reciprocate his affections

She reciprocated it

If someone doesn't reciprocate your feelings, there is nothing you can do to force them.

1) Take time to appreciate employees and they will reciprocate in a thousand ways. 2) Every day, try to help someone who can’t reciprocate your kindness.

Don't you think it's rude to give people such a curt reply like that?

Please reply.

The password is "Mountain". If someone says "Mountain", you reply "River".

Regarding Professor Scott's final criticism I have nothing more to add to what I said in my previous reply.

We'll release the final agenda on the morning of Monday, January 20, so please reply quickly.

Such an accurate, lightning-quick reply. What can I say?

Here's the Robert's reply. "You mean Robert's?" "No, it's the Robert. There's only one."

From the menu-bar's "Reply" select "create follow-up message". The message you reply to is quoted.

Mirror, mirror on the wall. Who in the land is fairest of all? And then the mirror would always reply: "You, my queen, are fairest of all."

What Alice, waiting for a reply, was faced with was a sudden howl. It was a resounding noise, sharp as to burst her ear drums, loud as to reach unto the heavens.

My predecessors had asked their questions of nature with genuine curiosity and awaited her reply.

"I don't understand," she replied. He didn't reply to my email. Henry replied that he had no idea what I was talking about.

Why does everybody have to reply to them when you can just ignore the cracked-sounding ones?

To the query, "What is a friend?" his reply was "A single soul dwelling in two bodies."

Only ask questions to which the reply can be either "yes" or "no".