Actually sort of. I mean I guess what you would call a soup. Though the Chinese would just consider that a sauce. The put that shit on everything. Well different sauces. Here's a random picture of a Chinese school lunch.
https://whatsforschoollunch.blogspot.com/2009/08/china-school-lunch-fish-and-vegetables.html
You see how the veggies are glistening? They're covered in a sauce made with cornstarch and broth. Even the fish has a layer of sauce on it.
So yeah, a sandwich would be pretty dry. But that's not really what they're talking about.
In Chinese food, there's an insane amount of seasonings that basically go in everything. At a minimum they use something called 5 spice which is a mixture of you guessed it, 5 spices. So the dry they're referring to is actually seasoning. So something like a subway sandwich with italian dressing, salt, pepper and oregano wouldn't be dry in the way they're using it. They're really just referring to the sandwich being unseasoned. Also, here's a tip, if you're going to make a sandwich, season it. Even just adding salt and pepper will make it taste way better.
Wow, this shows absolutely no understanding of how ERA works. Let's pretend for a second that the light steel in a truck is enough to protect against the backfire of an ERA brick. It's not, but let's pretend. Even then, only the door would be protected, everything else that's on glass, which all of it pretty much is would backfire into the truck cabin. It's like sticking grenades all over your truck.