First things first, here's a plain fact.

首先，事实显而易见。

First things first is the seven seconds.

第一件事是首先的7秒。

OK. First thing — arrive on time.

好。第一点——准时到达。

First thing I do is check my phone.

起床后的第一件事就是看手机。

First thing you really notice obviously is the smell.

首先你真正注意到的明显是气味。

First things first, let's juice some limes.

首先，把青柠榨汁。

First things first, what are gerunds and infinitives?

首先，什么是动名词和不定式？

Say something. First thing that comes to your mind.

说两句。想到什么说出来。

First things first-- since you are Elena Gilbert, you're on journal duty.

首先就是，既然你是Elena Gilbert，你就负责拿到日记。

First thing's first. Let's kill this motherlover.

要事第一 先杀了这恋母的畜生。

First things first, a hop in the shower, right?

首先，要去洗个澡，对吗？

First thing, " we need to knuckle down" .

第一个，“我们必须全力以赴”。

First thing to consider here is your personal life.

在这要考虑的第一件事是你的个人生活。

First thing we need to do is raise your profile.

首先要做的就是上交你的简历。

First thing I'll do is make a cup of coffee.

（起床后）我的第一件事就是冲一杯咖啡。

First things first, I need to know how these things work.

首先，我需要知道这些东西是如何工作的。

First thing my mom says, Oh boy, it's cold there!

我妈说的第一句话就是，噢，孩子，那里可是很冷啊！

First things first, you should hit the gym.

先说重要的，首先要做到的就是去健身房锻炼。

First thing that's different...no more Dad, Morty. - Oh, geez.

第一个改变… … 你爸爸出局了。- 哦，天啊。

First thing in the morning, I woke up and looked up.

每天早上醒过来第一件事，就是检查身上被叮咬的痕迹。