nibble基本解释
vi,细咬；一点一点地咬；吹毛求疵,同近
He nibbled the biscuit cautiously..他小心地啃着饼干。
细咬；一点一点地咬；吹毛求疵英释中释vto eat small amounts of food by taking very small bites
nibble at,一点一点地咬；吹毛求疵；啃.短语
