When we sleep, for example, the saliva stream slows, and sulfur producing bacteria gain the upper hand, producing classic "morning breath".
例如,当我们睡觉时,唾液流变慢,产生硫的细菌占上风,便会产生典型的“晨起口臭”。
When we sleep, for example, the saliva stream slows, and sulfur producing bacteria gain the upper hand, producing classic "morning breath".
例如,当我们睡觉时,唾液流变慢,产生硫的细菌占上风,便会产生典型的“晨起口臭”。
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