What keeps our sofa in place?

You look at the pipe under the toilet, it's an N-shape, according to the communicator principle. The liquid level height on both sides of the U-shaped tube with the same air pressure is equal. So the water on the surface of the toilet bowl is always kept at the same height as the water inside.

It's really expensive for ordinary people, but if your economy allows, there's no problem, making money is meant to be used, and the quality of buying expensive ones is also guaranteed.

We have a sofa and a clock in the living room.

You have to understand a truth, if you don't have a good relationship with your sister-in-law, your brother will be caught in the middle of it, so why bother? Look for her advantages, don't look at the shortcomings, no one is perfect, hello, I'm good, everyone is fine.

Look at fate, if you like it, take the initiative to attack. Sometimes happiness is earned by yourself.