For example, a pond in hilly country that maintains a steady water level all through a dry summer in spite of having no streams flowing into it must obviously be seepage dominated.

例如，在丘陵地区的一个池塘，尽管没有小溪流入但在整个干燥的夏季保持稳定的水位，显然一定是以渗流为主。

youdao

This year marks the 300th anniversary of a battle fought in hilly terrain near the Ukrainian town of Poltava.

今年是“波尔塔瓦之战”300周年，这场战斗发生于乌克兰小城波尔塔瓦附近的丘陵地带上。

youdao

The ecological problems in hilly city are analyzed, and principles and methods of ecological construction are presented.

分析了山地城市面临的生态学问题，并提出了相应的生态建设原则和途径。

youdao

It landed in the hilly Fra Mauro area of the moon.

VOA: special.2009.07.29

The county council said snow had caused problems on some roads, particularly in hilly areas where lorries got stuck.

BBC: 'Difficult driving conditions' after Staffordshire snow

Networks using lower frequency spectrum tend to fare better in rural areas as their signals propagate better, especially in hilly areas.

BBC: Mobile firm on rural net crusade

This document presents the design and evaluation of a rain simulator to study soil losses and runoff generation in erosion plots located in hilly bared soil.

UNESCO: AQUATACAMA