mainstay
/BrE ˈmeɪnsteɪ 
, AmE ˈmeɪnˌsteɪ /
noun
1 Nautical 主桅支索
2 figurative (chief support) 支柱; (central component) 主要部分;
the country's economic main 该国的经济支柱
mainstay
English → Chinese
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