3rd bridge
So imagine you're playing with blocks, and you have two blocks stacked on top of each other. If you want to get from the top block to the bottom block, you can either climb down the side or jump off and land on the bottom block. But what if you want to get from the top block to another block that's not next to it? That's where a 3rd bridge comes in. It's like a special block that connects the top block to the other block without you having to climb down or jump. It makes it easier to get from one place to another.
In real life, a 3rd bridge is a type of bridge that is built to connect two places that are not next to each other. It's called a "3rd" bridge because it's not the first bridge (the first one would connect the two places that are right next to each other) and it's not the second bridge (the second one would connect the first bridge to the place you're trying to get to). So the 3rd bridge is the special bridge that connects the first bridge to the place you're trying to get to. It makes it easier to get from one place to another without having to go all the way around.
In real life, a 3rd bridge is a type of bridge that is built to connect two places that are not next to each other. It's called a "3rd" bridge because it's not the first bridge (the first one would connect the two places that are right next to each other) and it's not the second bridge (the second one would connect the first bridge to the place you're trying to get to). So the 3rd bridge is the special bridge that connects the first bridge to the place you're trying to get to. It makes it easier to get from one place to another without having to go all the way around.