再走一步的话，你就已经跌下楼梯了。 - Zhictionary

Zhictionary

再走一步的话，你就已经跌下楼梯了。

Another step, and you would have fallen down the stairs.

Source: Tatoeba

Sentence Composition

again; once more; re-
further; beyond this point of time
(before an adjective) more
then (after sth, and not until then)
no matter how ... (followed by an adjective or verb, and then (usually) 也 yě or 都 dōu for emphasis)
(used to introduce additional information, as in 再則 zàizé, 再就是 zàijiùshì etc)
(literary) to reappear; to reoccur

to walk
to go
to run
to move (of vehicle)
to visit
to leave
to go away
to die (euph.)
from
through
away (in compound verbs, such as 撤走 chèzǒu)
to change (shape, form, meaning)

one step; a single step

if (coming after a conditional clause)

you (informal, as opposed to courteous 您 nín)

you (Note: In Taiwan, 妳 is used to address females, but in mainland China, it is not commonly used. Instead, 你 is used to address both males and females.)

(after a suppositional clause) in that case; then
(after a clause of action) as soon as; immediately after
(same as 就是 jiùshì) merely; nothing else but; simply; just; precisely; exactly
only; as little as
as much as; as many as
to approach; to move towards
to undertake; to engage in
(often followed by 著 zhe) taking advantage of
(of food) to go with
with regard to; concerning
(pattern: 就 jiù ... 也 yě ...) even if ... still ...
(pattern: 不 bù ... 就 jiù ...) if not ... then must be ...

to fall
to tumble
to trip
(of prices etc) to drop
Taiwan pr. dié

to go downstairs

(bound form) ladder; stairs

(completed action marker)
(modal particle indicating change of state, situation now)
(modal particle intensifying preceding clause)

to finish
(used with 得 dé or 不 bù after a verb to express (im)possibility, as in 忘不了 wàngbuliǎo "cannot forget")
(literary) (usually followed by a negative such as 無 wú or 不 bù) completely (not); entirely (not); (not) in the least
to understand clearly (variant of 瞭 liǎo)

(of eyes) bright
clear-sighted
to understand clearly

unofficial variant of 瞭 liào