to worry at
[phrase form: worry]
01
かじる, 引っ張る
to constantly shake or bite something, often with a pulling motion
例
The puppy worried at the stick, trying to retrieve it from under the furniture.
子犬は棒をくわえて引っ張り、家具の下から取り出そうとしていました。
02
頭を悩ます, 考え抜く
to attempt to solve a problem through extensive thought and consideration
例
She worried at the math problem for hours until she finally found a solution.
彼女は何時間も数学の問題に取り組み、ついに解決策を見つけた。
