differential returns的用法和樣例：
例句
- Informants hoping to gain financial reward will often notify the I.R.S. of friends and colleagues falsifying tax returns.
第二種信息來源來自想得到報酬而將朋友和同事虛填納稅申報單通知稅務局的人。 - Earnings, or the total return to labor, are the sum of returns to raw labor and the returns to human capital.
工資，或者勞動力的總報酬，是簡單勞動報酬和人力資本報酬的總和。
