降低

(verb) To reduce something in quality, value or intensity

例句

EXAMPLE: The stock market analyst decided to downgrade his assessment of the company because of its poor earnings recently.

由于這家公司近來盈利不佳，分析師決定降低對它的評級,。

最大成效

An expression describing a condition in which operations are at their most efficient

EXAMPLE: Some managers believe that six is the right number of members on a work team for optimal effectiveness.

有些經(jīng)理認為,，一個工作團隊要發(fā)揮出最大成效，最佳人數(shù)應(yīng)為 6 人,。