雪梨個心係黑色，點解？

hi, yes, sometimes I also have this experience, it is because this pear is already abnormal (bad pear). normally pear should be in white colour. so u are better do not eat that.

種雪梨時的人,冇杜蟲，敢d雪梨個心咪黑色。

雪梨內藏黑色心，是有蟲進蛀的表現。