If you miss it, you just miss it.

一旦错过就是错过了。

youdao

If you miss that train then you'll have to get a taxi.

如果你错过那趟火车，那就得坐出租汽车。

《牛津词典》

Lectures have hundreds of students and they are not going to follow you up or question you if you miss the lectures.

讲座有数百名学生参加，如果你错过了讲座，他们不会继续跟进或提问。

youdao

That influence shows up years later in the recording of "If You Pray Right" on Miss Simone's album "Baltimore."

VOA: special.2009.10.04

Oh, yes. And, of course, the Webcast is available so that if you miss something during lecture, or if you miss lecture altogether you can go to the website, click on Webcast and follow what happened in lecture.

哦，还有，当然，网络视频是可以利用的,所以如果你们在课堂上错过了什么，或者你们连上课都错过了,你们就可以去上这个网站，点击视频，观看课堂里呈现的。

麻省理工公开课 - 固态化学导论课程节选

So sometimes, if you miss a class, you can just kind of check in earlier years, like lectures,

所以有时候，如果你错过了一节课，你可以看看前几年的讲座，

开放式的课程？ - SpeakingMax英语口语达人

What's up: If you miss a period, pregnancy or menopause are two obvious explanations.

CNN: Your period: What's normal, what's not, what to do

If you miss the fairway, don't expect them to hold approach shots from the rough.

BBC: THE LOWDOWN

On some cards, if you miss a payment your APR may go up substantially.

FORBES: Magazine Article