jettison

jettison
[ˈdʒɛtɪs(ə)n, -z(ə)n]
verb
  1. [with obj.]throw or drop (something) from an aircraft or ship
    （从飞机或船上）抛扔，扔弃（某物）
    six aircraft jettisoned their loads in the sea.
    六架飞机把负重扔到了海里。
    ■abandon or discard (someone or something that is no longer wanted)
    抛弃，废弃；扔弃（无用的人或物）
    the scheme was jettisoned.
    方案被放弃了。
noun
  1. [mass noun]the action of jettisoning something
    投，扔；抛弃，废弃；扔弃
语源
  1. late Middle English (as a noun denoting the throwing of goods overboard to lighten a ship in distress): from Old French getaison, from Latin jactatio(n-), from jactare 'to throw' (see jet). The verb dates from the mid 19th cent
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