crank up1 → variant of crank at crank2
2 phrasal verbphr v informal to make the sound of something, especially music, louder 加大…的音量 We cranked up the volume. 我们把音量调大了。
crank up• That will crank it up a few more notches.• By about six, they're cranking the music up loud again.• She pushed a cart to the bed and cranked it up over his lap.• Some people move away, they get A / C first thing and crank it up to Cold.
→ crank something ↔ up at crank2(2)