HSK V6
Correct

用得着

/ yòngdezháo /
Strokes

Definition

to be able to use/useable/to have a use for sth/(in interrogative sentence) to be necessary to

Example

As a Verb

find sth useful; need

1
Zhè
zi
盒子
méizhǔn
没准
huì
yòng
de
zháo
  
,
biè
rēngdiào
扔掉
  

Don't throw the box. It may come in handy/useful.

2
yìng
xiē
那些
jiù
píngzi
瓶子
liú
zhāo
  
,
shuōbudìng
说不定
tiān
huì
yòng
de
zháo
  

You should keep those old bottles—you never know when you might need them.

As a Verb

there is need to; it is necessary to

3
Yòng
de
zháo
zhème
这么
zǎojiù
早就
kāi
离开
ma
  
?

What's the necessity of leaving so early?