HSK 4 HSK C4/W3/V4
Correct

倍

/ bèi / 
Strokes

Definition

(two, three etc) -fold/times (multiplier)/double/to increase or multiply

Example

As a Verb

double

As a Numeral

time; fold

As an Adverb

exceptionally; extraordinarily

As an Adverb

［only used before some adjectives］ awfully; especially; extremely