Definition
To severely damage or undermine the foundation or support of something.
严重损害，尤其是破坏其支撐
The scandal completely knocked the bottom out of the company's reputation.
丑闻彻底摧毁了这家公司的声誉。
The new tax law has knocked the bottom out of the profits for small businesses.
新税法严重损害了小企业的利润。
The unverified rumor nearly knocked the bottom out of the politician's career.
未经证实的谣言几乎摧毁了这位政治家的职业生涯。