Located in tropical areas at low altitudes, savannas are stable ecosystems, some wet and some dry consisting of vast grasslands with scattered trees or shrubs.

"热带稀树草原位于热带地区，海拔较低，是一种稳定的生态系统，由广阔的草地和稀疏分布其中的树木或灌木组成，有些地区湿润，有些地区干燥。

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This is useful for irrigation, but the high temperatures, low humidities, and different day lengths of the dry season, compared to the normal growing season, can present difficulties with some crops.

这对于灌溉是有用的，但是旱季的高温、低湿度和不同于正常生长季节的白昼长度，会给一些作物的生长带来困难。

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Although in-flight infections thrive in dry environments like airplanes, your risk of getting sick from an airplane is actually low because of the air filters used.

尽管在飞机等干燥环境中，飞行的过程中很容易滋生传染病，但由于飞机上使用了空气过滤器，因此你在飞机上得病的风险实际上很低。

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But now, NeuroSky (a fab(u)less startup of US chip designers and Russian neuroscientists chillin' in NorCal) claims a "breakthrough" in non-invasive neural sensors allowing low-cost, dry (no contact gels) neural mapping solutions to be applied to those things you'd most like to mind control (spouse, voters, TV, game console, cellphone).

ENGADGET: NeuroSky to offer thought control without those pesky brain implants

The flooding of overflow office districts in low-lying areas like Metairie could raise demand for high-and-dry high-rises downtown.

FORBES: Inbound Traffic

They are a hard-working couple: Willem-Alexander regularly gives speeches at water conferences, sharing his low-lying nation's centuries of experience battling to stay dry, while soon-to-be Queen Maxima, a former investment banker, has carved out a career as a microfinance expert.

NPR: Dutch Queen Beatrix Abdicating, Son Will Be King