在食品加工行业中，严格的健康和卫生规定至关重要。

Strict health and ___hygiene regulations are essential in food processing industries.

良好的牙齿卫生习惯包括定期刷牙和使用牙线。

Good dental ___hygiene practices include regular brushing and flossing.

许多患者在家缺乏适当护理时，难以维持个人卫生。

Many patients struggle with personal ___hygiene when they lack proper care at home.