year-over-year 與year-on-year

year-over-year 與year-on-year的含義相同，都是用于比較上年同期的財務業績，可以是一年，也可以是一季度的或一個月的同期對比,如：

year-over-year的用法, （美國用的較多）

Earnings per share are up 10% year over year.

每股收益同比增長10%。

Profits were down 11% on a year-over-year basis.

利潤同比下降11%。

This is the 12th straight month in which monthly sales have declined, year-over-year.

這是連續第12個月銷售額同比下降。

This would lower the year-over-year rate from 3.7% to 3.0%.

這將使年增長率從3.7%降至3.0%。

That&39;s up from only 96 million a year ago -- a 52 percent year-over-year increase.

這比一年前的9600萬有所上升——同比增長52%。

Year on year用法與year-over-year類似，但頻率不如后者，前者英國用的較多

Revenue was up 59% year-on-year, and daily active users were up 17%.

營收同比增長59%，日活躍用戶同比增長17%。

But brokers say the year-on-year decline in sales volume is largely due to a lack of supply.

但經銷商表示，銷量同比下降主要是由于供應不足。

Media costs will definitely increase on a year-on-year base.

媒體成本肯定會同比增長。

In fact individual birds do almost exactly the same thing every year -- arriving punctually at the same time year-on-year.

事實上，每只鳥每年都做著幾乎完全相同的事情——每年準時到達同一時間。

The main site today has around 2 million unique visitors per month, and it has grown by about 50 percent year-on-year.

現在的主網站每月有大約200萬獨立訪問者，同比增長約50%。

That represents a year-on-year decline of nearly 12 percent.

這意味著同比下降近12%。