Finally, there's saliva, which is secreted from several glands in the mouth.

最后是，口腔中腺分泌。

Ebola spreads through bodily fluids such as blood or saliva.

埃博拉通过血或等体传播。

Getting rid of plastic with worm spit.

用蠕虫处理塑料。

I'm going to take a sample of my own saliva.

我要取自己样本了。

Over salivation, like just so much saliva, just suddenly. I don't, I've never created this much saliva before.

分泌过多，有很多很多，就是很突然。我没有，我从来没有产生过这么多。

Meanwhile, saliva coats those pieces, delivering enzymes that help break down the food.

同时，包裹在这些小碎块上携带酶会帮助分解这些食物。

Every day, you produce one to two liters of spit. It kickstarts digestion and helps you swallow.

人类每天都会产生一到两公升。能促进消化并帮助吞咽。

Your Mouth—it produces about a liter of saliva a day.

你嘴巴它每天都会产生大概一升。

Yeah, the salt is helping to salivate.

是，盐有助于分泌。

As the saliva dries, it has to be replaced.

干了之后还得重新抹上。

Saliva flows out of his mouth.

从他嘴里流出来。

The actual truth is their saliva is venom that is made to paralyze the animal.

事实是它们是毒，用来麻痹动物。

Never use water or saliva to clean or store your lenses.

一定不能用水或清洗或储藏隐形眼镜。

They cool down a little as their saliva evaporates.

当他们蒸发时，他们会稍微冷却。

It can't be broken down with saliva, or fully digested by stomach acid.

它无法被分解，或是被胃酸彻底消化。

Your girlfriend, that's fine. You guys share saliva anyway.

和女朋友一起就没关系。毕竟你们会交换。

Before and after the experiment, we take their samples of saliva for a hormone test.

实验前后，我们取他们样本进行激素试验。

The recently-discovered enzymes were found in the saliva of the wax worm moth.

最近发现这种酶发现于蜡螟幼虫中。

We call it saliva, but it's the liquid coming out of the mouth.

我们称之为，其实就是从嘴里流出体。

To understand why, let's back up. To mosquito spit.

为了了解原因，我们回到蚊子这个问题上。