dou·ble·tree 
(dŭbəl-trē′)
(dŭbəl-trē′)n.
A crossbar on a wagon or carriage to which two whiffletrees are attached for harnessing two animals abreast.
| 单词 | doubletree |
| 释义 | dou·ble·tree (dŭbəl-trē′)n. A crossbar on a wagon or carriage to which two whiffletrees are attached for harnessing two animals abreast. |
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