Imagine if you could order something online and get it delivered in just 30 minutes, 想像一下，如果你可以在網路上訂貨，然後在短短三十分鐘內送達，
kind of like a pizza except it's not a pizza. 這有點像是披薩外送，只不過這不是披薩。
That's what Amazon wants to do with its new shipping service called Prime Air. 這是 Amazon 新的送貨服務 Prime Air 想要做到的事。
The retailer plans to pull it off with the help of drones, believe it or not. 信不信由你，零售商 Amazon 打算利用無人機來完成這項任務。
Ralitsa Vassileva explains. 蕾麗薩．瓦希利娃帶來報導。
Delivery to your doorstep by pilotless drone. 用沒有飛行員的無人機將貨品送到您的家門口。
It's not science fiction, says Amazon CEO, Jeff Bezos, Amazon 執行長傑夫．貝佐斯說，這並非科幻小說的情節，
who unveiled the new delivery service it's testing Sunday on America's top-rated news program, CBS's 60 Minutes. 他星期天在全美收視率最高的新聞節目，哥倫比亞廣播公司的《六十分鐘》節目上，公開該公司正在測試的這項新的送貨服務。
We can do half-hour delivery. 我們可以在半小時內將訂貨送達。
Half-hour delivery... 半小時內送到……
Half-hour delivery, and we can carry objects, we think, up to five pounds, 半小時內送到，而且我們可以載運的物件，我們認為可以重達五磅，
which covers 86 percent of the items that we deliver. 涵蓋了百分之八十六我們所運送的貨物。
Bezos says the unmanned aerial vehicle they call an "octocopter" is autonomous, 貝佐斯表示，這種他們稱為「八旋翼直昇機」的無人空中載具是自動化的，
guided only by GPS coordinates which will tell it where to go within a radius of 16 kilometers. 它只靠全球衛星定位座標導引，告訴它半徑十六公里內的目標怎麼走。
And that's more than enough for the world's biggest online retailer, which has pushed the envelope in online delivery, 這對全球最大網路零售商 Amazon 而言已經綽綽有餘，該公司挑戰了網路送貨服務的極限，
invested heavily in building warehouses it calls "fulfillment centers" close to its customers. 砸下鉅資在其顧客所在地附近興建該公司稱為「實現中心」的倉庫。
It has 96 centers around the world, Amazon 在全球共有九十六座倉儲中心，
each the size of more than ten football fields 每座倉儲佔地都超過十個足球場大，
with a capacity to receive more than 300 orders per second on Cyber Monday. 產能足以在網路星期一（編註：感恩節過後的第一個星期一）當天接受每秒三百件訂單。
And some of the challenges, well, they're rather obvious in a way. 這項服務遇到的一些挑戰，就某方面而言還頗明顯的。
Bezos says they'll have to make sure a two-kilo package doesn't fall on someone's head. 貝佐斯說他們得確保兩公斤重的包裹不會掉下去砸中某個人的頭。
Media expert Mike [Brian] Stelter says the jury is still out on whether it will work. 傳媒專家布萊恩．史戴爾特說，這項服務是否能成功還在未定之天。
I do think there will be some pushback to Amazon's drones. 我認為 Amazon 的無人機，會碰到一些阻力。
I think there will also be a lot of people, a lot of geeks like me, who are gonna say this is an amazing experiment. 我想也是有很多人，很多像我這樣的技客，會說這是個很了不起的實驗。
And it might fail, you know. It might for lots of reasons we can't even imagine end up not working. 而這項服務有可能會失敗，它最後可能會因為很多我們想像不到的原因而失敗。
But it's a really interesting experiment because it helps us imagine a future where there will be more of these drones. 但這真的是一項很有意思的實驗，因為它讓我們去想像一個有更多這類無人機的未來。
So don't expect them to be hovering over your doorstep just yet. 所以現在先別期待這些無人機到您家門口的上空盤旋。
U.S. air regulations also have to change. 美國航空法規也必須修改。
At the moment, flights like this would be against FAA rules, 目前像這一類的飛行違反聯邦航空局的法規，
but that could change in 2015. 但這點在二○一五年時可能會有所改變。
Bezos hopes to begin his version of airmail in four to five years. 貝佐斯希望能在四到五年內展開他的航空郵遞作業。