英语语法分析

If the innards of each pig are Petri dishes, then possible pandemic flu viruses have been stewing on hog farms for decades.

如果每头猪的内脏都是培养皿，那么可能的大流行性流感病毒已经在养猪场熬了几十年了。

Their innards do slide into their throat, but it's a controlled glide.

它们的内脏确实是滑到了嗓子眼，但是这种滑动是可控制的。

So, their innards do slide into their throat, but it's a controlled glide.

因此，它们的内脏的确会滑向嗓子眼儿，但这种滑动是可控制的。