downgrade
🇬🇧 UK/'daʊngreɪd; daʊn'greɪd/🇺🇸 US/'dajn^reid/
C2
Definitions
v.
To reduce the rank, status, or rating of something or someone; to disparage
降级;降低评级;贬低
n.
A reduction in rating, quality, or status; a downhill slope on a road or railway
降级;下坡;评级下调