Rick begins his mock battle with the F-rank Crusher, Raster Diarmut. Raster thinks the gap in ability between him, a genius, and Rick, a late-starting newbie, is all too clear. But as the battle progresses, Rick's training begins to show through.
he neglected to refine and further them.
‫أهمل صقلها وتطويرها.
und nicht gut an ihnen gefeilt.
Il a négligé
sa quête de perfectionnement.
trascurando l'affinamento delle sue tecniche!
mas negligenciou 
refiná-los e melhorar.
что даже не пытался развивать
 и оттачивать его.