First take small towns, later cities.

先取小城市，后取大城市。

youdao

It made its backers rich. Financiers in the Washington,D.C., area also knew what canals meant to cities like Venice in Italy and Tsaritsyn - later called Stalingrad and Volgograd - in Russia.

VOA: standard.2010.04.29

AmazonLocal on Kindle with Special Offers is launching in New York City and expanding to all AmazonLocal cities later this year.

ENGADGET: Ad-supported Kindle getting AmazonLocal to distract you from all that pesky reading

The Chinatown bus business developed in the 1990s to offer recent immigrants an inexpensive van ride around town and, later on, between cities.

ECONOMIST: Innovation brings emulation

Starting in New York and later in 15 other cities, he sent bags of Popchips to thousands of influential individuals, ranging from fashion designers to event planners.

WSJ: How I Built It: Popchip Makes Its Way Into the Snack Aisle