1)V+上 to show a result of the verb
例:他们已经联系上了。
They've already made contact.
2)瞧我这…… to show that you've made a mistake or to criticize
yourself
例: 瞧我这记性,忘了把书给你带来了。
Oh, my bad memory! I forgot to bring the book for you.
3)数词+人+数词+量词 something per person
例:这是门票,我们一人一张。
These are the tickets for each one of us.
Editor: Xie Shiying | Source: CCTV.com