self-propelled

形容词 adj.
中文释义

英文释义

形容词 adj.
  1. Having its own means of propulsion that moves with it. not-comparable
    — Of particular note were two self-propelled fire-fighting vehicles, adapted from Drewry railcars, enabling a rapid response to a fire anywhere on the extensive site.

词源

Etymology tree
Proto-Indo-European *swé?
Proto-Indo-European *selbʰ-der.
Proto-Germanic *selbaz
Old English self
Old English self-
Middle English self-
English self-
English propelled
English self-propelled
From self- + propelled.
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