Correct

青山不老

/ qīng shān bù lǎo / 
Strokes
https://i.cchatty2.com/filters:format(webp)/fit-in/684x0/img/202102/青山不老-Chinese-idioms-Cchatty-e334048c-d0ca-4ff8-95c5-b2cd018f1038-1612778401.jpg

Collocation

1
他的功绩将会青山不老,与世长存
2
老人依旧青山不老,生气勃勃
3
青山不老,绿色常存

Definition

青山不老

Literally means:

the blue mountains never grow old

Actually means:

last forever

It figuratively means that something can last long or last forever. It can also describe an old person who keeps a vigorous body or a youthful mentality. Commendatory.

比喻事物经历的时间长久或永远存在。也形容老年人保持旺盛的精力,或年轻的心态。具有褒义色彩。

Example

Used as predicative, object or as a minor sentence. (作谓语、宾语、小句
1
Zhè
这
wèi
位
lǎo
老
yīshēng
医生
yǐjīng
已经
qīshíduō
七十多
suì
岁
le
了
  
,
yījiù
依旧
qīngshānbùlǎo
青山不老
  
,
měitiān
每天
zài
在
wéi
为
cūnmín
村民
men
们
zhìbìng
治病
  
。

The old doctor, who is in his seventies, is still not old and treats the villagers every day.

2
Biè
别
kàn
看
tā
他
jiǔshíduō
九十多
suì
岁
  
,
kě
可
xià
下
qǐ
起
wéiqí
围棋
lái
来
sīlù
思路
háishi
还是
hěn
很
qīngxī
清晰
  
,
hěnduō
很多
niánqīngrén
年轻人
dōu
都
bú
不
shi
是
tā
他
de
的
duìshǒu
对手
  
,
zhēnshi
真是
qīngshānbùlǎo
青山不老
ā
啊
  
!

Don't look at him in his nineties, but the idea of playing Chess is still very clear, many young people are not his opponents, really Qingshan is not old ah!

3
Rén
人
de
的
shēngmìng
生命
suīrán
虽然
yǒuxiàn
有限
  
,
dàn
但
rén
人
yòng
用
shēngmìng
生命
suǒ
所
chuàngzào
创造
de
的
jiàzhí
价值
  
,
què
却
kěyǐ
可以
qīngshānbùlǎo
青山不老
  
,
yú
与
shì
世
chángcún
长存
  
。

Although human life is limited, but the value created by human life, but can not be old, and the world.