mainstay
音標['meinstei] 讀音漢語翻譯
n. 主桅支索, 支柱, 中流砥柱
英文解釋：
名詞 mainstay:
- a prominent supporter同義詞：pillar
- a central cohesive source of support and stability同義詞：anchor, keystone, backbone, linchpin, lynchpin
- the forestay that braces the mainmast
例句：
- He is the mainstay of our theatre group.他是我們劇組的台柱。
詳細解釋：
main.stay
n.（名詞）A chief support:主要依靠：例句：Agriculture is a mainstay of the economy.農業是經濟的支柱
Nautical A strong rope that serves to steady and support the mainmast of a sailing vessel.【航海】 主桅支索：用來穩定和支撐帆船主桅的結實的繩子
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