消化是在口腔中唾液的作用下开始的。

Digestion begins in the mouth with the action of saliva.

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多汁可增强肉质风味，可使肉柔软-易于咀嚼，刺激口腔内唾液的产生。

Juiciness increases flavour, helps soften meat - making it easier to chew, and stimulates saliva production in the mouth.

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Albert博士说“你的口腔健康取决于很多因素，包括你吃的食物，口腔唾液的数量，习惯，你的全身健康状况以及你的口腔卫生保健习惯。”

"Your oral health depends on many factors," Dr. Albert said. "These include what you eat, the type and amount of saliva in your mouth, your habits, your overall health and your oral hygiene routine."

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And he had to attach something to dogs so that their saliva would pour out so he could study saliva.

他给狗套上了一些装置,来收集狗的唾液用以研究。

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What he would do is he'd put food powder in the dog's mouth to generate saliva.

他的做法是,给狗喂食，让狗分泌唾液。

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But Pavlov observed that when somebody entered the room who typically gave him the food powder, the dog--the food powder saliva would start to come out.

他注意到,当给它喂食的人,进屋时，狗便开始分泌唾液。

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