change down
US /tʃeɪndʒ daʊn/
UK /tʃeɪndʒ daʊn/

1.
menurunkan gigi, mengurangi kecepatan
to shift to a lower gear in a vehicle
:
•
You need to change down when going uphill.
Anda perlu menurunkan gigi saat menanjak.
•
The driver had to change down quickly to avoid stalling.
Pengemudi harus menurunkan gigi dengan cepat untuk menghindari mogok.