This is going to represent the cool air mixing in.

这代表遇到冷空气。

The Flesh and Blood We Share The cries of market sellers filled the air, mixing with the scent of freshly-baked bread, which disappeared into the mouths of happy festival-goers.

我们共享的骨肉 市场上小贩的叫卖声弥漫在空气中，夹杂着新鲜出炉的面包的香味，消失在欢乐的节日人们的口中。

When that air mixes with the air deep in your lungs — including a lot of air that you haven't exhaled yet — the partial pressure of oxygen drops to about 104 millimeters of mercury.

当这些空气和你肺部深处的空气混合时——包括许多你还没有呼出的空气——氧气的分压下降到大约 104 毫米汞柱。

Old cars have carburetors; new cars have fuel injection systems. These are the things that control how much gas is burnt, and how much air mixes with the gas to get the proper amount of burn.

旧车有化油器；新车有燃油喷射系统。 这些是控制燃烧多少气体的东西， 以及多少空气与气体混合以获得适当的燃烧量。