第3课

planetary ['plænɪtrɪ]

a.of a planet 行星的

characteristic [,kæriktə'ristik]

n.[pl.]特性

characteristically [.kæriktə'ristikli]

ad.in a characteristic manner

probability [,prɔbə'biliti]

n.可能性；概率

来自probab(le)(a.可能的)+ility→可能性

likelihood ['laiklihud]

n.probability 可能，相似性

ray [rei]

n.光线，射线，辐射线

gamma ray

光(量)子

carry through

进行(到底)；贯彻

work at

put effort into 从事于，致力于

carry out

fulfil or perform (sth.)

carry on

继续开展，坚持下去

carry off

kill (sb.); take by force

work in [wə:k in]

插进；引进；配合

work up

(cause to) rise by gradual movement

worm [wə:m]

n.(蠕)虫; 蚯蚓

work out

solve or calculate (sth.) correctly

work on

从事于(某工作)

work off

get rid of;remove

carry forward

go ahead with;cause to advance

carry down

give/leave to people who are younger