The dog is gnawing on a bone.
To bite or chew on something repeatedly.
She felt a gnawing in her stomach about the exam.
A persistent feeling of worry or anxiety.
He had a gnawing doubt about his decision.
Causing persistent discomfort or worry.
Với từ điển hình ảnh mạnh mẽ miễn phí và thẻ ghi nhớ.