Tickets are available on a first come, first served basis.

票先来先买，售完为止。

《牛津词典》

We have a lot to discuss, but, first things first, let's have a cup of coffee!

我们有许多事要讨论，不过急事先办，咱们先喝杯咖啡吧！

《牛津词典》

I made it pass the first cut the first year I applied, but was turned down for admission.

我在第一年申请的时候通过了第一次筛选，但是被拒绝录取了。

youdao

Boston,Massachusetts, held the first First Night celebration in nineteen seventy-six.

VOA: special.2009.12.28

And if that's true is everything in the string, starting at the first element and removing the last element, a palindrome?

如果是相同的话,是不是字符串中的所有从第一个元素开始,并且删除最后一个元素后？

麻省理工公开课 - 计算机科学及编程导论课程节选

When in 1645 Milton finally publishes that first volume of poetry, the first poem that he places in this volume is the Nativity Ode, our poem today.

当1645年出版了首个诗集，他把《圣诞清晨歌》放在最前面，就是我们今天看到的这首诗。

耶鲁公开课 - 弥尔顿课程节选

By the first decade of the twenty-first century, I could no longer swing a golf club.

NPR: Excerpt: 'The Healing Of America'

Ms Bokova is the first woman and the first Eastern European to head the organisation.

UNESCO: Irina Bokova of Bulgaria elected as UNESCO's 10th Director General

That first day I spent with the first sculpture I saw, the Winged Victory of Samothrace.

BBC: The bloom of cancer