turn up
US /tɜːrn ʌp/
UK /tɜːrn ʌp/

1.
出现, 到来
to arrive or appear, especially unexpectedly or after being lost
:
•
He didn't turn up for the meeting.
他没有出现在会议上。
•
Don't worry, your lost keys will eventually turn up.
别担心,你丢失的钥匙最终会出现的。
2.
调大, 增强
to increase the volume, strength, or intensity of something
:
•
Can you turn up the music? I can barely hear it.
你能把音乐调大声点吗?我几乎听不到。
•
Turn up the heat, it's getting cold in here.
把暖气开大点,这里变冷了。