英语释义
1. a science of the establishment and maintenance of health
2. conditions or practices (as of cleanliness) conducive to health
has poor personal hygiene Brushing your teeth regularly is an important part of good oral hygiene.
3. the things that you do to keep yourself and your surroundings clean in order to maintain good health
4. a science that deals with the bringing about and keeping up of good health
5. conditions or practices (as of cleanliness) necessary for health
He has good personal hygiene.
6. a science of the establishment and maintenance of health — see industrial hygiene, mental hygiene
7. conditions or practices (as of cleanliness) conducive to health