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to gnaw; to nibble; to bite; to munch; to crunch
to dabble in; to know a little bit about; to learn a little of; to have a smattering of
リスが木の実を一生懸命囓っている。
A squirrel is earnestly gnawing on a nut.
リスが木の実を囓った跡が残っていた。
There were marks left where a squirrel had gnawed on a nut.
子猫がテーブルの脚を囓っているのを見つけた。
I found the kitten gnawing on the table leg.