Correct

搭界

/ dājiè / 
Strokes

Definition

an interface/to relate with/to affiliate

Example

As a Verb

have a common border (with); border (on)

1
Zhōngguó
中国
de
的
běibù
北部
yú
与
Éguó
俄国
hé
和
měnggǔ
蒙古
dājiè
搭界
  
。

China borders Russia and Mongolia on the north.

2
Zhèlǐ
这里
shì
是
liǎng
两
guó
国
dājiè
搭界
de
的
dìfāng
地方
  
。

This is where the two countries adjoin.

As a Verb

[often used in the negative] have sth to do with; have connection with

3
Wǒ
我
bù
不
yuàn
愿
gēn
跟
zhèzhǒng
这种
rén
人
dājiè
搭界
  
。

I don't want to get involved with such people. / I don't want to have anything to do with such people.

4
Zhè
这
liǎng
两
jiàn
件
shì
事
gēnběn
根本
bù
不
dājiè
搭界
  
。

There is no connection whatsoever between these two things.