Correct

三步并作两步

/ sān bù bìng zuò liǎng bù / 
Strokes
https://i.cchatty2.com/filters:format(webp)/fit-in/684x0/img/202102/三步并作两步-Chinese-idioms-Cchatty-3c97179a-115e-45e5-bc7b-3f191fede80b-1612776160.jpg

Collocation

1
三步并作两步迎上去
2
三步并作两步地跑回家
3
他三步并作两步,很快就跑得无影无踪

Definition

三步并作两步

Literally means:

it takes two steps to cover the length of three

Actually means:

go in hurry

It means going fast and hurriedly.

形容走路又急又快,步子跨得很大。

Example

Used as predicate or adverbial adjunct. (作谓语、状语)
1
Tīngshuō
听说
jiālǐ
家里
lái
来
kèrén
客人
le
了
  
,
dàwěi
大伟
sān
三
bù
步
bìng
并
zuō
作
liǎng
两
bù
步
  
,
hěnkuài
很快
jiù
就
pǎo
跑
huíjiā
回家
le
了
  
。

I heard that the family came to the guests, Dawei three steps and two steps, soon ran home.

2
Yùbèi
预备
líng
铃
xiǎng
响
le
了
  
,
tā
他
pà
怕
chídào
迟到
ái
挨
pīpíng
批评
  
,
sān
三
bù
步
bìng
并
zuō
作
liǎng
两
bù
步
dì
地
wǎng
往
jiàoshì
教室
pǎo
跑
  
。

The bell rang, and he was afraid of being criticized for being late, and ran to the classroom in three steps and two steps.

3
Kàndào
看到
lǎoshī
老师
lái
来
le
了
  
,
tā
他
jiù
就
sān
三
bù
步
bìng
并
zuō
作
liǎng
两
bù
步
yíng
迎
le
了
shàngqù
上去
  
。

Seeing the teacher coming, he took three steps and made two steps to meet him.