It was the world's fifth mass extinction. 这是世界上第五次大规模灭绝
Chandler: OK the fifth dentist caved, and now they're all recommending Trident? 广告里那第5个牙医也退缩了,现在他们都推荐Trident口香糖?
Paul: So you still think you might want that fifth date? 那你还希望有第五次约会吗?
Paul: No, it's, it's more of a fifth date kinda revelation. 不是,这更应是第五次约会的事情。
Monica: Oh, so there is gonna be a fifth date? 就是说还会有第五次约会吗?
Her prehensile tail acts like a fifth limb, 她的尾巴可以抓握物体 就像第五只手
400 miles long and over a mile deep, Baikal contains one fifth of all the fresh water found in our planet's lakes and rivers. 贝加尔湖长400英里 深度超过1英里 其中淡水储量占到了全球江河湖泊淡水总量的1/5