How to say “You don't have to extend the whole telescopic ladder; four or five rungs will get you to the top shelf.” in Japanese
In Japanese
伸縮はしごは全部伸ばさなくていいよ。四段か五段あれば上の棚に届くから。
Shinshukuhashigo wa zenbu nobasanakute ii yo. Yondan ka godan areba ue no tana ni todoku kara.