1) Be good enough to reply early.
请早日赐覆。
2) Please reply at your earliest convenience.
务请早日赐覆。
3) We hope for an early answer to our letter.
盼早日赐覆。
4) An answer will oblige.
恳请赐覆。
5) Please reply by return.
请即赐覆.
6) Please reply at your convenience
便请赐覆
补充资料：烦请
敬辞，表示请求：～光临。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条