2N-COUNT [usually plural]无用的装饰;虚饰 If you describe something as having nofrills, you mean that it has no extra features, but is acceptable or good if you want something simple. 无用的装饰;虚饰 [approval]
This booklet restricts itself to facts without frills.
这本小册子只谈事实,绝无矫饰。
...plain, simple cooking in no-frills surroundings.