| 单词 | mainstay |
| 释义 | mainstay /mayn"stay'/, n. 1. Naut. the stay that secures the mainmast forward. 2. a person or thing that acts as a chief support or part: Coffee is the mainstay of the country's economy. [1475-85; MAIN1 + STAY2] Syn. 2. pillar, bulwark, anchor, prop. |
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