you're not here

基本解释

"Can't if you're not here, " he answered.
他回答：“如果你不在，就开心不起来。”
"I just need an hour to do some applications," Trotter says in a desperate voice to her boyfriend. "It's not like I can do it when you're not here, because you have your phone.
“我只需要一个小时写个求职书，”Trotter绝望地向她男友喊道，“当你不在家的时候，我没办法弄着这个，因为你有你自己的电话。”
You're not here for a biology lesson, but without PCR, we basically wouldn't be able to study DNA. That also means we wouldn't have the CSI shows, so, was it worth it? You decide.
在这不是要给你上生物课，但你得知道如果没有聚合酶链式反应技术，我们基本上不可能研究DNA，而且也不会有《犯罪现场调查》剧集系列了，所以这东西很赞吧，你说呢。

But we are going to need you, not just here today, but you're going to have to go home and take some of what you've learned here and teach your families and folks -- the other kids in your schools who haven't had a chance to come, and figure out how you guys can get other people in your lives moving."
And what I'm showing here is not on your notes, if you're interested you can look it up in your book.
我这里展示的没有在你们的讲义里给出，如果你们感兴趣的话可以看看课本。
麻省理工公开课 - 化学原理课程节选
You're allowed Cv comes out here for this adiabatic expansion, which is not a constant volume only because this is always true for an ideal gas.
绝热过程写下,这个式子是因为它对理想气体都成立，并没有用到等容过程的条件,只用了理想气体的条件。
麻省理工公开课 - 热力学与动力学课程节选

But now if you're not here, you know, at a certain time they won't let you in and you don't get seats together and this and that and the other thing.
NPR: Air Travelers Say Hassles Mount