請幫我英文翻譯(急用)

Supply is limited. First come first served.

The things limited, no more things if there is many people to buy

2008-04-12 23:08:16 補充：
The things are limited, no more things if there is many people to buy

The quantity is bought and come limitedly promptly

「數量有限，買完即至」→ 「先到先得」

→ first come first

The quantity limitedly buys namely to

幫我翻譯下面這句話
“數量有限買完即至”
英文嗎 ?
" amount is be finite , While stock lasts "