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

1.
menukar gear ke bawah, mengurangkan gear
to shift to a lower gear in a vehicle
:
•
You need to change down when going uphill.
Anda perlu menukar gear ke bawah apabila mendaki bukit.
•
The driver had to change down quickly to avoid stalling.
Pemandu terpaksa menukar gear ke bawah dengan cepat untuk mengelakkan enjin mati.