He was spit saliva on his face.(人們朝他臉上吐口水。)

The bug is found in saliva and normally causes no problems.(這種病毒存在于唾液中，一般是不會有什么問題的。)

When the bell comes connected with food, there's a lot of saliva.(當鈴聲和食物形成了聯(lián)系，狗會因為鈴聲的出現(xiàn)而分泌大量唾液。)

And to get saliva he had to have dogs.(為了弄到唾液，他找來了幾條狗。)

They make the saliva that drains into your mouth.(它能制造唾液流進你的口腔。)

They're all over each other sometimes and viruses and vaccines can spread saliva or other fluids.(有時候他們會纏綿不休，而且病毒和疫苗可以傳播唾液或其它液體。)

Digestion begins in the mouth with the action of saliva.(消化是在口腔中唾液的作用下開始的。)

Over and over again, if you put the bell and the food together, pretty soon, the bell will generate saliva.(如果你一再讓鈴聲和食物同時出現(xiàn)，很快，鈴聲便會促使唾液分泌。)

Members of highly ranked groups can be polluted by coming into contact with bodily secretions, particularly saliva, of individuals of lower-ranked castes.(社會地位高的人接觸到社會地位低的人的身體分泌物，特別是唾液，就會受到污染。)

These tests may involve taking blood or saliva samples.(檢查時會抽取血液或唾液樣本。)