main·stay 
(mānstā′)
(mānstā′)n.
1. A chief support: Agriculture is a mainstay of the economy.
2. Nautical A stay running forward from the mainmast to the deck of a sailing vessel.
| 单词 | mainstay |
| 释义 | main·stay (mānstā′)n. 1. A chief support: Agriculture is a mainstay of the economy. 2. Nautical A stay running forward from the mainmast to the deck of a sailing vessel. |
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