How to write the word key?

Pinyin: Shi Yao.

Explanation:

1, unlock the device.

The fourth time in the Water Margin: "Na Han opened the door with a key, please sit inside."

2. Metaphor is a person who manages affairs.

The third time in A Dream of Red Mansions: "You are your grandmother's master key."

It refers to the methods and means of opening the door.

Sha Ting's "Breaking the Pass" episode IV: "Zuo Jia was inspired and imagined that he had found the key to the secret."

The origin of keys

The ancient Egyptians were the first people to use keys in the world. Their lock is to insert a wooden latch into a groove with a wooden latch at the top of the groove. After the door bolt is inserted into the groove, the wooden bolt will be inserted into the hole of the door bolt. In this way, the door bolt is very strong and must be opened with a key.

Because the Egyptian lock can only be used on the side with the bolt, which is not conducive to flexible opening and closing, the Greeks developed a lock that can be opened from the other side. The key made by the Greeks is a curved wooden stick, which is very similar in shape and size to the sickle used by farmers. However, some keys are as long as 3 feet and must be carried on the shoulders to move, which is quite heavy.

The Romans were the most exquisite locksmiths in ancient times. They are very familiar with the standards for making keys and have learned how to cut nails at the end of keys into various shapes.