not hurt a fly or flea
不會傷害一只蒼蠅或跳蚤
口語·形容極其善良
英文釋義
To be extremely gentle and harmless
例句
My grandmother is so kind, she wouldn't hurt a fly or flea.
典故來源
源自16世紀,fly和flea均象征微小生命,強調無害。