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If you can see it, wrap it in a couple of plastic bags and take it out directly. If there is no trace of it, then the toy has gone to the end of the sewage pipe and the pit at the bottom, and there is no need to dig it up at this time.
That's a water mist, just disassemble the phone if you can disassemble it like that, and put it in a ventilated place for 2-3 days.
If it's blocked, it's already blocked, and now it's okay to go down.
If you haven't rinsed with boiling water, you should be able to see, touch, or use a pumping device to see if you can pull it out. After flushing, it enters the main pipe, and there is no way to get it back.
Water in the toilet can dilute the urine and potentially affect the test results. It is not recommended to test it in the toilet.
Generally, it can't be flushed away, because there is a reverse bend in the toilet, and most toilets have relatively small drains, and even toothpicks can get stuck there. You can throw a few pieces of toilet paper in it and try it, if it is blocked, the small brush is still inside.