先到者先受招待的英文：
first-come-first-serve

come是什么意思：
v. 来；发生；开始；出现；变成；达到；来做；来取；来拿
int. 嗨，得啦，好啦

The bale will be coming.
不幸就要降临了。

Come on get with it!
好啦，时髦点儿吧！

Illness comes in by mouth and comes out by it
病从口入祸从口出

serve是什么意思：
v. 为...服务；供应；任（职）；服役
n. 发球（权）

to serve the landlord
为地主干活

Persons serving on the Appellate Body shall serve in rotation.
上诉机构人员任职应实行轮换。

They drafted him to serve as their delegate.
他们选派他作他们的代表。