If the weather's no good then I won't take any pictures.

如果天气不好，我就不拍照。

《柯林斯英汉双解大词典》

He asked if I had left with you, and I said no.

他问我是不是和你一起离开的，我说不是。

《柯林斯英汉双解大词典》

'And if I say no?' she ventured.

“那么我要是说不呢？”她试探说。

《牛津词典》

If there was no home like this, I would have no place to go to continue my education.

VOA: special.2010.05.03

Ok, double line. If there are no questions I'm going to make a dramatic change in topic.

好的，这是重点，如果没什么问题,我要讲下面的内容。

麻省理工公开课 - 计算机科学及编程导论课程节选

So if I take away the quotation marks, all I have is the word with no indication that it's a concept.

所以如果我拿掉引号，剩下的就只是这个词而不指示一个概念了。

耶鲁公开课 - 文学理论导论课程节选

So who was I if I was no longer capable and busy?

NPR: The Hardest Work You Will Ever Do

At the same time, I felt as if I had no right to that connection.

CNN: Arwa Damon's Iraq: Suffocating in a cloak of sorrow

Unlike journalists covering a specific beat, with deadlines and quotas to meet, I feel no anxiety if I miss important developments, and I feel no urge to compete for and break big stories.

FORBES: The Six-Month Review