Correct

一点就通

/ yī diǎn jiù tōng / 
Strokes

Definition

a hint is all that is needed/understanding each other without the need to explain

Example

Definition

take a hint quickly

1
Tā
他
zhège
这个
rén
人
hěn
很
líng
灵
  
,
yī
一
diǎn
点
jiù
就
tōng
通
  
。

He is a clever man and takes a hint quickly.