Submitted by admin on Tue, 04/22/2014 - 23:46
definition:
(Of an animal) having normal physical functions suspended or slowed down for a period of time; in or as if in a deep sleep
sentence:
An animal prepares for hibernation by building up a thick layer of body fat during late summer and autumn that will provide it with energy during the dormant period. During hibernation, the animal undergoes many physiological changes, including decreased heart rate (by as much as 95%) and decreased body temperature.
Dormant volcanos are the volcanos that scientists consider possible to erupt again.
difficulty:
medium
toefl frequency:
2
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