dì​yī​bù

step one; first step

第一步 dì​yī​bù
step one; first step noun
the first stage of a process or the metaphorical beginning of an endeavor

The first step in treating any form of diarrhea is to drink water.

The first step is undoubtedly the most difficult.

the first step noun
the initial physical step taken when walking or marching

Once you have taken the first step, the second one will become clearer.

Frequency

Written text
11.3 per million

Sources

Frequency data
BCC Corpus (BLCU)