4o
例句释义:1.Later that year, Continental Motors Corporation came out with the 37-hp A-4O and the Taylor E-2 Cub was placed on the market.后来这一年，大陆汽车公司出来与37-惠普-4o和泰勒电子商务2幼童被放置于市场。
2.The girl waited until 4o'clcok, but her friends did not come.女孩一直等到4点钟，但是她的朋友没有来。
3.What were you doing at about 4o'clock yesterday afternoon? I waswriting some letters to friends ofmine.昨天下午4点左右你在干什么？我在给我的朋友写信。