The biggest obstacle is the ranchers themselves, whose cattle compete with prairie dogs and bison for grass and space.

最大的障碍是牧场主自己，他们的牛与土拨鼠和野牛争夺草地和空间。

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But if you've had your fill of security checks, Space Mountain-size ticketing lines and the general cattle-call atmosphere of major airports, smaller air-transit hubs are packed with sweet surprises and can make for a less stressful and, dare we say it, far more pleasurable trip.

WSJ: Instant-Upgrade Airports