first come, first servedfirst served first come used to say that something will be given to the people who ask for it first, when there is not enough for everyone 先到先得 Tickets will be allocated on a first come, first served basis. 票的发放遵循先到先得的原则。
on a first come, first served basis• Seating is available on a first come, first served basis.
→ first come, first served at first2(7)