a long thin cut
spiral cut on a gramophone disc for needle or stylus
rut
"they fell into a conversational rut"
"groove a vinyl record"
"furrow soil"
He formed a number of circular grooves on the cylindrical part of the bullet.
出自: W. Greener
A drawer side needs a groove for the runner.
出自:Practical Woodworking
In these holes are threads of Screws grooved inwards.
出自: R. Holme
What a face he saw, how grooved with woe and age.
出自: S. Bellow