A pair of oxen, yoked together, was used.
把兩頭牛用軛套在一起使喚。
He wore old jeans and a pair of sneakers.
他穿一條舊牛仔褲，腳蹬運動鞋。
The mechanic was wearing a pair of blue overalls.
機修工穿著一件藍色工裝連衣褲。
She clamped a pair of headphones over her ears.
她把一副耳機戴在兩邊耳朵上。
Go out and buy a pair of glasses, and charge it to us
去買副眼鏡，賬記在我們頭上。