发音相同，都含有/ɜː/音。
Shane was chowing down on a mammoth hamburger.
谢恩正在狼吞虎咽的吃一个巨型汉堡。
A pound of hamburger, please.
请给我一磅汉堡。
Put some ketchup on the hamburger.
在汉堡上加点蕃茄酱。
He has been nursing for many years.
他已经做护士好多年了。
He worked as a nurse in a hospital.
他在一家医院当护士。
His wife is a nurse.
他的妻子是个护士。