C1 the degree to which people keep themselves or their environment clean, especially to prevent disease卫生;卫生状况
More examples
She is obsessed with personal hygiene and washes constantly.
The dentist stressed the need for good oral hygiene.
To prevent the spread of harmful bacteria, everyone should understand the basics of good food hygiene.
When those boys go to camp, I hate to think what their standards of hygiene are like!
The last two centuries have seen enormous improvements in health and hygiene generally.
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