gnaw /nɔː/ TEM4 ( gnawing, gnawed, gnaws )

• 1. 

  V-T/V-I If people or animals gnaw something or gnaw at it, they bite it repeatedly. 反复啮咬

  例：

  Woodlice attack living plants and gnaw at the stems.

  木虱会侵袭活体植物并不停地啮咬它们的茎。

• 2. 

  V-I If a feeling or thought gnaws at you, it causes you to keep worrying. 困扰 [书面]

  例：

  ...the nagging disquiet that had gnawed at him for days.

  …困扰了他数日、令他不得安宁的忧虑。