1、At three in the afternoon.例句：Im sorry, I wont be free until 12 on Tuesday. Can I see him at three in the afternoon that day? 对不起，我星期二12点之前没空。可以订在那天下午的三点吗？

2、At 3 p.m.例句：You know, I bought it at 3 p. m. yesterday. 你知道，我昨天下午3点买的。