Submitted by admin on Sat, 05/17/2014 - 19:46
definition:
An area of low-lying land that is flooded in wet seasons or at high tide, and typically remains waterlogged at all times.
sentence:
The Romans became practised at draining marshes to rid areas of malaria-carrying mosquitoes.
difficulty:
medium
toefl frequency:
2
toefl classification: