thea chief support or main part of something
Bananas are the mainstay of their economy
a rope or wire stretching forward from the head of the mainmast of a sailing ship and providing its chief support
| 单词 | mainstay |
| 释义 | mainstaynounthea chief support or main part of something Bananas are the mainstay of their economy a rope or wire stretching forward from the head of the mainmast of a sailing ship and providing its chief support |
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