| 单词 | 投下 |
| 释义 | 〔throw〕The rising sun threw shadows across the lawn. We threw sheets over the furniture before we painted the ceiling.初升的太阳在草坪上投下了阴影。我们在油漆天花板之前先用纸把家俱盖上〔fluoroscope〕A device equipped with a fluorescent screen on which the internal structures of an optically opaque object, such as the human body, may be continuously viewed as shadowy images formed by the differential transmission of x-rays through the object. Also called roentgenoscope 荧光检查仪：一种用于观察不透明物体的带有荧光屏幕的设备，例如人体的内部结构，可通过X光透过物体时的不同传送在屏幕上投下的阴影观察 也作 roentgenoscope〔dent〕The loss put a dent in the team's confidence.这失败给全队的信心投下了阴影〔drop〕A descent by parachute.空投：用降落伞投下〔airdrop〕To drop or be dropped from an aircraft.空投：从飞机上落下或被投下〔drop〕To parachute.空投：以降落伞投下〔parachute〕To drop (supplies or troops, for example) by means of a parachute.伞投：用降落伞投下（例如，军备或物资）〔chaff〕Strips of metal, foil, or glass fiber with a metal content, cut into various lengths and having varying frequency responses, that are used to reflect electromagnetic energy as a radar countermeasure. These materials, usually dropped from aircraft, also can be deployed from shells or rockets.金属箔：含有金属成分的一些金属片、箔片或玻璃纤维，切割成不同长度并具有不同的反射频率，以反射电磁能来干扰雷达。这些材料通常由飞机上投下，也可布置于炮弹或火箭上〔scotia〕from Greek skotia [from feminine of] skotios [dark, shadowy (from the shadow it casts)] 源自 希腊语 skotia 源自skotios的阴性词 [黑色，浅的（源自它投下的阴影）] |
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