外卖为什么这么快

zài在zhōng guó中国，diǎn点wài mài外卖shì是yī一jiàn件hěn很pǔ tōng普通de的shì事。

In China, ordering takeout is a very ordinary thing to do.

zhǐ yào只要zài在ruǎn jiàn软件shàng上diǎn点jǐ几xià下，bàn半xiǎo shí小时yǐ nèi以内jiù就huì会sòng dào送到。

A few taps in an app, and it arrives within half an hour.

sòng送wài mài外卖de的rén人jiào叫“qí骑shǒu手”，tā men他们qí骑zhe着diàndòngchē电动车zài在chéng shì城市lǐ里pǎo跑。

The people who deliver are called riders, and they race around the city on electric bikes.

tā men他们néng能zhè me这么kuài快，shì是yīn wèi因为xì tǒng系统huì会tí qián提前suàn算hǎo好lù xiàn路线。

They can be this fast because the system works out the route in advance.

shāng商jiā家bǎ把fàn饭dǎ bāo打包hǎo好，fàng放zài在mén kǒu门口de的guì zi柜子lǐ里。

The restaurant packs the food and leaves it in a cabinet by the door.

qí骑shǒu手dào到le了zhí jiē直接ná zǒu拿走，bù yòng不用děng等。

The rider picks it up and goes, with no waiting.

dàn shì但是rú guǒ如果xià yǔ下雨huò zhě或者dǔ chē堵车，wài mài外卖yě也huì会chí dào迟到。

But if it rains or traffic jams, the delivery is late too.

suǒ yǐ所以qí骑shǒu手cháng cháng常常hěn很zháo jí着急，zhè这fèn份gōng zuò工作yě也hěn很xīn kǔ辛苦。

So the riders are often in a hurry, and the job is hard work.