be bad for

长时间看电脑屏幕可能对你的眼睛有害。

Looking at a computer screen for too long can ___be ___bad ___for your eyes.

吃太多糖果对牙齿不好。

Eating too much candy can ___be ___bad ___for your teeth.

太大声的音乐对耳朵不好。

Loud music can ___be ___bad ___for your ears.