Correct

养精蓄锐

/ yǎng jīng xù ruì / 
Strokes

Definition

to preserve and nurture one's spirit (idiom); honing one's strength for the big push

Example

Definition

nourish one's spirit and store up vigour—conserve strength and store up energy; recuperate and build up one's energy

1
Wǒjūn
我军
yǎngjīngxùruì
养精蓄锐
  
,
yǐ
以
yì
逸
dài
代
láo
劳
  
。

Our army has conserved its strength and is waiting for a chance to attack the fatigued enemy.

2
Wèile
为了
yǎngjīngxùruì
养精蓄锐
  
,
tā
他
qiǎngpò
强迫
zìjǐ
自己
shuì
睡
le
了
yī
一
gè
个
chángchángde
长长的
wǔjiào
午觉
  
。

He forced himself to take a long nap to renew his energy.

3
Yǎngjīngxùruì
养精蓄锐
yǐ
以
lì
利
zài
再
zhàn
战

save one's strength for the next battle