gnaw
[nɔ]
vt.& vi.
咬，啮;
使苦恼，折磨;
侵蚀;
使腐蚀;
vi.
咬;
折磨;
侵蚀;
例句:
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Woodlice attack living plants and gnaw at the stems.
木虱会侵害活体植物并啃咬它们的茎。
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He...sat down contentedly to gnaw the fine bone.
来自E. Blyton
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Dogs like to gnaw on a bone.
狗爱啃骨头.
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A rat can gnaw a hole through wood.
老鼠能啃穿木头.
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Our ancestors certainly liked a nice bone to gnaw on.
来自NEWYORKER
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Lusted with a passion that while unfulfilled, would gnaw at my entrails.
来自NEWYORKER