| 单词 | Achilles' heel | 
| 释义 | Achilles' heelAˌchilles’ ˈheel noun [countable]  a weak part of something, especially of someone’s character, which is easy for other people to attack:  The team’s offense is its Achilles’ heel. [Origin: 1800–1900 from the story that the ancient Greek hero Achilles was dipped as a baby into the River Styx to protect him, but the part of his heel he was held by did not get wet, and so remained unprotected] | 
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