To jump by parachute from an aircraft, in order to extinguish a forest fire. Chiefly as vbl._n.
| 单词 | θ72815 |
| 释义 | the world > matter > properties of materials > temperature > coldness > extinguishing fire > become extinguished [verb (intransitive)] > parachute to fight fire (1) smoke-jump1942 To jump by parachute from an aircraft, in order to extinguish a forest fire. Chiefly as vbl._n. |
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