这些清洁产品含有刺激性化学物质，应谨慎使用。

These cleaning products contain ___harsh chemicals that should be used with caution.

医院里刺眼的灯光让人难以放松。

The ___harsh lighting in the hospital made it difficult to relax.

这款肥皂温和，对敏感皮肤不会太刺激。

This soap is gentle and not too ___harsh for sensitive skin.