self-propelling
参考词典中self-propelling的常规释义：
基本释义
- 自行的
英英解释
形容词解释：
- containing within itself the means of propulsion or movement
- a self-propelled vehicle
- moved forward by its own force or momentum
- a self-propelled egotist
- the arms program is now self-propelled
点击查看……- containing within itself the means of propulsion or movement
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