1.在(某处):We will get together at the corner of the street.我们将在街角碰面。2.在(学习或工作的地方):He is at Yale.他在耶鲁大学。3.在(某时刻):I get up at 6 o’clock every day.我每天六点起床。4.在……岁时:She graduated from Yale at 20.她20岁时从耶鲁大学毕业。5.向,朝:Please look at the picture.请看这幅画。6.在……远:I can hold it at arm’s length.我可以伸直胳膊提着它。 We will get together at the corner of the street. We will meet at the corner. He is at Yale. He is at Yale University. At some point: I get up at 6 o’clock every day. I get up at 6 o’clock every day. At age: She graduated from Yale at 20. She graduated from Yale University at age 20. Look toward the picture. Look at the picture. I can hold it at arm’s length. I can straighten my arm and carry it.