doubletree
/ˈdʌbltriː/noun
- N. Amer. a crossbar in front of a wagon with a swingletree at each end, enabling two horses to be harnessed〈北美〉（双马拉车时用的）双驾横木。
词源
mid 19th cent.: from DOUBLE, on the pattern of singletree.
| 单词 | doubletree |
| 释义 | doubletree/ˈdʌbltriː/noun
词源 mid 19th cent.: from DOUBLE, on the pattern of singletree. |
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