Correct

脆快

/ cuì kuài / 
Strokes

Example

As an Adjective

straightforward; direct; quick and neat

1
Shuōhuà
说话
cuì
脆
kuài
快

be forthright/blunt in speech

2
Bànshì
办事
cuì
脆
kuài
快

get things done real fast/quick; be efficient in work