1) (Achilles'heel (Fatal Weakness)
This phrase comes from ancient Greek mythology. Achille is an outstanding hero in ancient Greek legends. He died in the Trojan War. After hundreds of battles, he has made many achievements. It is said that Achille was just an ordinary child when he was born. In order to develop his strong will and make him an invulnerable steel body, his mother lifted his body upside down and put him on the ground. Soaked in the River Styx, the river that surrounds hell. Sure enough, after being soaked, his body became a pair of steel bones, and he was no match for any vicious enemy. However, his heels were held in his mother's hands. His hand was never soaked in the River Styx. In this way, his heel was the same as that of ordinary people, which became the hero's fatal weakness. Later, during a battle, he was shot by his enemy. Only the heel. This heroic and invincible hero finally died of his own fatal weakness. There are also variations of the phrase "the heel of Achille", which means "fatal weakness". >2) Cain'heresy (demonic heresy)
Cain n.
)[metaphor] brother-killer; murderer; murderer; devil
There are also related nouns:)~
Adam Adam
Eve Eve
Abel n. Bible "Old Testament" Abel (the second son of Adam and Eve)