英語翻譯：

saliva; spit; spittle

例句：

1. 唾液是唾液腺的分泌物。
   Saliva is secretion of the salivary glands.
2. 他說話說快了就愛噴唾沫星。
   He's inclined to spit when he talks quickly.
3. 她向他[他的臉上]啐了一口唾沫。
   She spat at him/in his face.
4. 唾液能幫助咀嚼和消化食物。
   Saliva helps one chew and digest food.