get it on和get on it都是短语，只是表达的意思不同。
中文解释是：
1、get it on
兴奋，激动。
变得有精神；处于激动兴奋状态
做爱，与…性交
勃起，性欲亢奋
玩个痛快
2、get on it
开始做某项工作
例句：
1、get it on
You never get it on... on this axis.
你无法得到它，在这个轴心上。
I need to get it on the black market.
我需要从黑市上购买这种东西。
On the last day, his parents popped out to the local shop to get something for lunch, so weknew we only had a few minutes to get it on – which added to our excitement.
最后一天的时候，他父母出去到当地的商店买东西准备午饭，我们知道机会来了，只有几分钟，这更让人兴奋。
"Seven in the morning is the only time we have to ourselves, so that's when we get it on, " saysAnne, 37.
“早上七点是我们唯一属于彼此的时间，这就是我们如此有精神的原因，”37岁的安妮说。
Also like the movie industry, we must get increments of software into executable form (get it onfilm) to make things tangible enough to assess progress and quality.
还是和电影工业一样，我们必须使软件成为可执行形式（弄到胶片上）来切实进行进度和质量的评估。
The problem is - it kinda looks like he is trying to get it on with him!
但问题是，这个场面看上去有点像他好像想要跟吉姆“缠绵”！
But when I mentioned my fantasy of watching him get it on with another woman, he wanted tomake it a reality.
可当我与他提起我幻想他与别的女人发生性行为，他告诉我他的确想这样做。
He added gravely that if the opposition insists on holding unsanctioned protests and marches, "They will get it on the head with a truncheon.
他还补充说，如果反对党坚持进行没有被许可的示威游行或者抗议，“他们将不会有好果子吃。”
Your week was long, you just had a romantic dinner with red wine, and if you played your cards right, she wants to get it on in a hurry.
你们有很长的假期，刚刚享用完浪漫的美餐加美酒，只要引诱得法，她应该很迫切的想和你共赴佳境的。
If you own stock-- we don't get them in the mail anymore because you own it through somebrokerage account and you get it on a website.
如果你有股票...，我们现在不通过挂号信了，因为人们都通过经纪人账户，在网站上购买股票。
Single people get it on 62 times per year.
如果是单身，一年也应该有62次。
If you think women don’t enjoy watching other people get it on, you’re completely mistaken.
如果你认为女人不爱偷窥别人的床弟之欢，那就大错特错了。
2、get on it
Instead of scrolling through single-frame previews, you can mouse over each animated clip toget more info, then click to watch. Chad and Steve: Get on it.
你可以通过鼠标的逐步移动以获得更多的信息，进而点击预览；而非滚读单帧的预览图。
You'd better get on it right away. By the way, I'm going to be busy on Thursday, so you'd better have it ready by noon tomorrow.
你星期四没有时间，那就是说我非得在明天中午以前交给你。
You should get on it immediately.
你应该马上做这份工作。
Well, we bums call it the Midnight Ghost cause you get on it at L. A. and nobody sees you.
是，我们流浪汉都叫它‘午夜幽灵’因为你在洛杉矶登上它，直到早上到达三番市之前。
The Live Mesh developer program currently has a waiting list and anyone can get on it.
LiveMesh开发人员计划目前有一个等候列表，任何人都可以加入。
and you avoid the frustration of arriving at the very moment when the train is drawing out of thestation and being unable to get on it.
而且可以避免那种正好在火车驶出站时赶到车站，因上不去车而感到的沮丧。
When the train is drawing out of the station and being unable to get on it.
即在火车驶出站时才赶到车站，而你也因此上不去车的尴尬。
And, I don't have the patience to wait hours just to get on it.
而且他也没有耐心等两个小时只是为了乘坐一趟云霄飞车。
That's to remove any of the bugs, dirt, dust, bird droppings, anything you get on it.
这会去除所有的虫子、泥土、尘土、鸟粪以及上面粘着的所有其他东西。
Did you get on it a bit?
是否觉得顺当一些了？
You can see the kind of slideshows you can get on it.
你可以看到它可比播放出的不同种类的幻灯片。
B. No, but I'll get on it.
没有，但我马上就打。