n.
a groove or furrow (especially one in soft earth caused by wheels)
a settled and monotonous routine that is hard to escape
"they fell into a conversational rut"
同义词：groove
applies to nonhuman mammals: a state or period of heightened sexual arousal and activity
同义词：estrusoestrusheat
Apparatus for photographing road ruts
Getting into and out of mental ruts : A theory of fixation, incubation and insight
Getting out of our conceptual ruts: Strategies for expanding conceptual frameworks.
Soil compaction and over-winter changes to tracked-vehicle ruts, Yakima Training Center, Washington
New roads, new ruts: lessons from drug-eluting stent restenosis
V-Shaped Tile Plow Reduces Soil Disturbance and Ruts
Apparatus for photographing road ruts
Arbete och lärande : Förutsättningar och hinder för lärande i dagligt arbete
Clinical features, pathogenesis, and treatment of Guillain-Barré syndrome.
Weight stability masks sarcopenia in elderly men and women
