6,Playing computer games too much does to your eyesharmful 用
do harm to 对.....有伤害,do 的第三人陈单数形式 does Playing computer games too much does (harm to ) your eyes. 玩电脑游戏太多对你的眼睛有害。 告诉你另外一种:籂钉焚固莳改锋爽福鲸 be harmful to 是有害的 Playing computer games too much are harmful to your eyes.? 玩电脑游戏太多对你的眼睛有害。 玩电脑游戏太多对你的眼睛有害。主系表 playing computer games 主语 is 系动词 harmful to your eyesight 表语do harm to 是个短语,意思是对....籂钉焚固莳改锋爽福鲸.....有伤害,harm在此短语是个名词。题中应该填harm。
另有be harmfu to.....意思与上相同。