Correct

平生

/ píngshēng / 
Strokes

Definition

all one's life

Example

As a Noun

all one's life; one's whole life

1
Nā
那
shì
是
tā
他
píngshēng
平生
dìyī
第一
cì
次
kàndào
看到
dàhǎi
大海
  
。

That was the first time he saw the sea in his life.

2
Píngshēng
平生
de
的
zhìyuàn
志愿

lifelong aspiration/wish

3
Píngshēng
平生
dàshì
大事

the biggest events in one's life

As an Adverb

usually; always; at all times

4
Tā
他
píngshēng
平生
jiānkǔpǔsù
艰苦朴素
  
。

He usually lives a simple/plain life.