Editorial Note: This article is written with editorial review and topic relevance in mind.
拷贝上来一段：你看看 first 第一 1st second 第二 2nd third 第三 3rd fourth 第四 4th fifth 第五 5th sixth 第六 6th seventh 第七 7th eighth 第八 后面简写都一样的. Do we put them as numbers or. When we use words like first, second, third, fourth or 1st, 2nd, 3rd, 4th, in sentences, what will be the best way to write these?
Investigation into deadly midair collision focuses on helicopter flight
1st就是first，读音：英 [fɜːst]，美 [fɜːrst] 2nd就是second，读音：英 [ˈsekənd,sɪˈkɒnd]，美 [ˈsekənd,sɪˈkɑːnd] 3rd就是third，读音：英 [θɜːd]，美 [θɜːrd] 10th就是tenth，读音：英 [tenθ]，.
