利润率的英文：
profit margin

参考例句：

- Growth and profitability
增长与利润率

Price based on rate of wage—profit
工资利润率价格

The managing director is interested only in increasing profitability.
总经理仅对提高利润率感兴趣。

The profit margins have been trending down (upwards).
利润率一直趋向下降(上升)。

Conclusion: Discrimination Diminishes Productivity and Profitability
结论:歧视会减少产出和降低利润率

Margin: In stock trading, funds or securities deposited as collateral for a broker loan.
股票交易的）保证金；利润；利润率；差额:股票交易中为获得经纪人贷款而存入作抵押的资金或证券。

profit是什么意思：
n.
1.利润，盈利；收益，红利[C,U]
2.利益，益处；得益[U]
v. [T]
1.有益于
v. [I]
1.有益，有利
2.得益，获益(+by/from)

To clear as profit.
净得利润

You are certainly a profiteer.
你真是个奸商。

yielding material gain or profit.
产生物质利益和利润。

profits and losses on disposal of investments
转让投资的损益

Reading is always profitable.
读书总会有所收获。

margin是什么意思：
n. 边缘；利润；余地；页边的空白；差额，差数；极限
v. 加旁注于；加边于

marginal initial
边缘原始细胞[见于植物]

We came to the margin of the wood.
我们来到树林的边缘。

margin release mechanism
极限释放机构

a marginal subaquatic flora.
边缘的半水生植物群。

Economists call these marginal changes.
经济学家称这些为边际的变化。