Introduction to the toilet

　　A toilet, also known as a toilet seat, is a covered bucket used for urination and defecation. The invention of the toilet is considered a great invention, solving the problem of urinating, drinking, defecating, and urinating. Later, flush toilets evolved, using siphons, spiral siphons, and now the latest jet siphons and super-rotary siphons. Some also consider flush toilets the root of all evil because they consume a large amount of domestic water. Toilets come in many different types, including two-piece and one-piece. With the advancement of technology, many new and novel varieties have emerged. Based on the type of toilet lid, they can be categorized as standard toilets and smart toilets. Smart toilets are further divided into automatic-replacing smart toilets and non-automatic-replacing smart toilets. The former includes automatic-replacing and flushing, automatic-replacing with flushing and drying, and other types.

　　The history of the toilet dates back to the Han Dynasty. Toilets at that time were called "huzi" (tiger toilets), used exclusively by the emperor and were said to be made of jade. They were held by eunuchs dedicated to the emperor, ready for immediate use. Later, in the Tang Dynasty, because there was a man named Li Hu in the emperor's family, in order to avoid taboos, the name "Hu Zi" was changed to "Shou Zi" or "Ma Zi". Later, in the process of circulation, it evolved into the name of the toilet.