形容词
1. 费劲的;苛刻的；要求严格的
You use exacting to describe something or someone that demands hard work and a great deal of care.
1. requiring precise accuracy
e.g. an exacting job
became more exigent over his pronunciation
Synonym: exigent
2. severe and unremitting in making demands
e.g. an exacting instructor
a stern disciplinarian
strict standards
3. having complicated nutritional requirements
especially growing only in special artificial cultures
e.g. fastidious microorganisms
certain highly specialized xerophytes are extremely exacting in their requirements
Synonym: fastidious