yào​bù HSK7

how about

要不 yào​bù
how about conjunction
how about...?; used to introduce a suggestion or a proposal

How about we go for hot pot?

either or conjunction
either... (or...); used to present two mutually exclusive alternatives

He is either in the office or in the meeting room.

otherwise conjunction
otherwise; or else; used to indicate the consequence if the preceding condition is not met

Hurry up, or else we'll be late.

Frequency

Movie subtitles
9.81 per million appears in 4% of films
Written text
53.0 per million

Details

HSK 2.0
Level 5
HSK 3.0
Level 7

Sources

Definitions
CC-CEDICT