Lesson 55 Flashcards by lu Sophie

Q

宇航员n

A

astronaut

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Q

探测v

A

detect

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Q

探测n

A

detection

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Q

银河

A

Milky Way

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Q

重大成就

A

a major achievement

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Q

相对而言

A

in relative terms

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Q

发出v

A

emit

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Q

（光，热等的）散发n

A

emission

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Q

无限地,无穷地adv

A

infinitely

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Q

维持生命

A

support（v.）life

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Q

理想的adj

A

ideal

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Q

进化,发展v

A

evolve

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Q

依赖某物

A

depend on sth.

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Q

光亮n

A

brightness

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Q

能够做某事

A

be capable of doing sth.

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Q

做为选择,二者择一地adv

A

alternatively

Q

选择性的adj

A

alternative

Q

选择（二中择一）n

A

alternative

Q

生命形式

A

life form

Q

存在

A

be in existence

Q

产生,发生v

A

generate

Q

在轨道上

A

be in orbit

Q

适当的,相配的adj

A

suitable

Q

分析v

A

analyze

分析n

analysis

大气n

atmosphere

细菌,（单数）n

bacteria

细菌（复数）n

bacterium

产生氧气

generate（v.）oxygen

呼吸v

breathe

呼吸n

breath

珍爱v

cherish

科学小说

science fiction

努力n

endeavor

努力v

endeavor

天文学n

astronomy