A占B的比例用英语怎么说

percentage是百分比，如果只是比例的话我觉得应该用ratio，the ratio of A to B 就是A与B的比例，在你的例句中就是xxx represents the ratio of good nodes that involved in interaction to all the good nodes.

英文百分比与百分点表达上的区别

百分数

百分数由percent表示，百分号％读作 percent，应用时常与by连用。

0．68％→zero point six eight percent

6％→six percent

369％→three hundred and sixty nine percent

The output of steel went up by 20 percent．钢产量增长20％。

The price of cotton was reduced by 20 percent．棉花的价格下降了20％。

The loss of water has been reduced to less than 30 percent．水的损耗减少到30％以下。

decreased by 1.2 percent 是百分比；a decrease of 3 percent 是百分点。关键看前面用的是动词还是名词，用动词+by是百分比，用名词是百分点。

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