lowland

Dikes protected the lowland from incursions of the sea.

堤防保护低免于海水流入。

Heavy rainfalls flooded the lowlands.

大雨淹没了低凹。

Heavy rainfalls swamped the lowlands.

大雨淹没了低。

Trees of the family Dipterocarpaceae dominate the canopy and emergent layers of the hyper-diverse, aseasonal, humid lowland tropical forests of Southeast Asia.

以龙脑香科植物为主东南亚热带雨林有一非常特别现象，那就是不定期大开花现象。

The genesis rock was collected by Apollo 15 astronauts near Hadley Rille at the border between a lowland “sea,” or mare, and the lunar highlands.

起源石由阿波罗15号宇航员在靠HadleyRille界上收集，这个界在低月亮“海”（或者称为mare）和月球高之间。