sanitation, sanction 的区别和用法辨析及示例例句

sanitation: n.公共卫生，环境卫生，卫生设备。
➤ Strict sanitation is used in businesses such as barber shops and restaurants.
在理发店和餐馆等营业场所执行严格的公共卫生制度。
sanction: n.认可，准许，批准。
➤ I need my parents' sanction to stay out late.
我晚回家需要得到父母的批准。