Originally U.S. On or on to a train, aircraft, or other vehicle. Cf. on board at board, n. 14a.
| 单词 | θ202765 |
| 释义 | society > travel > rail travel > rolling stock > [adverb] > on or into a train (1) aboard1840 Originally U.S. On or on to a train, aircraft, or other vehicle. Cf. on board at board, n. 14a. |
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