flat out
剑桥词典
- completely ; used for emphasis
（用于强调时）完全地
When I asked him about it, he flat-out denied it. 当我问起他这件事时，他矢口否认。
（用于强调时）完全地
When I asked him about it, he flat-out denied it. 当我问起他这件事时，他矢口否认。
（用于强调时）完全地
When I asked him about it, he flat-out denied it. 当我问起他这件事时，他矢口否认。