Examlex
Short-period comets, such as Halley's Comet, are believed to come from the ______________.
Stool Softener
A medication designed to increase moisture in the stool to ease its passage.
Treadmill
An exercise machine with a continuously moving belt, allowing a person to walk or run in place.
Shortness of Breath
The sensation of uncomfortable, difficult, or labored breathing.
Muscles
Tissues in the body that have the ability to contract, enabling movement and force.
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