She says no letter arrived this morning.

她说今天早上没有信来。

《新英汉大辞典》

When it comes to the letter grade on your test or homework, you might notice that there is no letter. Have you ever thought about why that is so?

当涉及到你的考试或家庭作业的字母分数时，你可能会注意到没有字母。你想过为什么会这样吗？

youdao

But no letter appeared, and she was completely puzzled.

可是并不见夫人拿信出来，这真叫她完全不明白是怎么回事了。

youdao

"Oh no,you are doing it again, Tom! You always cry when I read a letter from her.

VOA: special.2009.07.04

Gestapo agents intercepted him and demanded he sign a letter saying that at no point had he been threatened or harassed by the Gestapo.

盖世太保们拦住了他,要求他签署一份文件，上面写着,他绝没有受到盖世太保的威胁或骚扰。

耶鲁公开课 - 心理学导论课程节选

We don't know the intended recipient of this letter, and we actually have no idea whether Milton actually sent the letter; but a couple of drafts of this letter actually exist in Milton's own hand, and the letter is clearly a document that Milton had devoted some energy and some time to. We need to look at it.

我们不知道收件人是谁，我们也不清楚弥尔顿到底有没有寄这封信;,但这份信的草稿确实在弥尔顿那里，弥尔顿显然对这封信投入了不少,时间和精力，我们来看看。

耶鲁公开课 - 弥尔顿课程节选

In the real world, there are no grading curve and there are no letter grades.

FORBES: Would You Rather Get Into Y Combinator, 500 Startups, TechStars...or Harvard Business School?

"As far as I'm concerned, there's no letter from Fifa inviting us for the meeting, " Balala added.

BBC: Kenya wants Fifa delay

Vice versa and you're in luck: no letter grade, no soda ban.

WSJ: New York City Soda Restrictions: Ounces of Outrage