動(dòng)詞 jettison:

1. throw away, of something encumbering
2. throw as from an airplane

1. A ship jettisoning wastes; a pilot jettisoning aircraft fuel.
   一艘正在丟棄廢物的船; 一個(gè)正在拋棄飛機(jī)燃料的飛行員
2. The first-stage vehicle is used to launch the rocket and is then jettisoned in the upper atmosphere.
   第一級(jí)運(yùn)載火箭是用來(lái)發(fā)射火箭的，進(jìn)入高層大氣後即拋掉。

jet.ti.son

v.tr.（及物動(dòng)詞）
jet.ti.soned,jet.ti.son.ing,jet.ti.sons
To cast overboard or off:
拋棄或丟棄：
例句：
a ship jettisoning wastes; a pilot jettisoning aircraft fuel.
一艘正在丟棄廢物的船；一個(gè)正在拋棄飛機(jī)燃料的飛行員

Informal To discard (something) as unwanted or burdensome:
【非正式用語(yǔ)】 扔掉：丟棄一些不想要或是累贅的東西：
例句：
jettisoned the whole marketing plan.
放棄全部的營(yíng)銷計(jì)劃

n.（名詞）
The act of discarding or casting overboard.
拋棄或扔入水中
Jetsam.
被拋棄的東西

來(lái)源：
From Middle English jetteson [a throwing overboard of goods to lighten ship]
源自 中古英語(yǔ) jetteson [把貨物扔入水中以減輕船的重量]
from Anglo-Norman getteson
源自 英法語(yǔ) getteson
from Vulgar Latin *iect3tiô iect3tiôn-
源自 俗拉丁語(yǔ) *iect3tiô iect3tiôn-
from *iect3tus [past participle of] .iect3re [to throw] * see jet 2
源自 *iect3tus [] ·iect3re的過(guò)去分詞 [扔] *參見 jet2