Please reply to me at your earliest convenience.

请在您方便时给我们答复。

youdao

When you meet danger in a foreign land, do not give up! Please remember, at your back stands a strong motherland.

当你在海外遭遇危险，不要放弃！请记住，在你身后有一个强大的祖国！

youdao

Please excuse me for my rudeness at your birthday party. I shouldn't have argued with Lily.

请原谅我在你生日聚会上的无礼行为。我不应该和莉莉争论的。

youdao

"For many years, we would point our finger, particularly at Mexico,and say 'Please stop sending your drugs across the border to us.'

VOA: standard.2010.07.02

Please make sure you drop your library card at the front desk before you leave.

请确保在离开时，把图书卡放在前台。

have to 实战 - SpeakingMax英语口语达人

If you were at the forum, please share your additional insights in the comments below.

FORBES: 6 Top Takeaways From Forrester's Forum For Marketing Leaders

Everyone at the Superdome, please hold your cell phones up so we can finish this game.

FORBES: Connect

You phone a friend to let off steam, to hear 'Jemima and Jake are unavailable at the moment - please leave your name and number after the long tone'.

BBC: THE UNANSWERED CALL