?? 詞語組成解析
a. 電報發(fā)送的, 電報的, 簡短的\\n[經(jīng)] 電送的, 電報的
signal
['s?gnl]
n. 信號，暗號;預(yù)兆，征象;動機(jī);導(dǎo)火線;
vt. 向…發(fā)信號;用動作（手勢）示意;以信號告知;
vi. 發(fā)信號;
adj. 顯著的，優(yōu)越的;暗號的，作信號用的;
sign記號，信號+al表名詞 → 信號
??? 情景例句
Well, I'll try to arrange the schedule, Dr. Stewart.
好吧，盡力去安排，Stewart大夫。
What were you doing at about 4 o'clock yesterday afternoon?
你昨天下午在大約4點(diǎn)鐘正在做什么？
A telescope would have to be as far away as the planet Jupiter to look for life in outer space, because the dust becomes thinner the further we travel towards the outer edges of our own solar system.
望遠(yuǎn)鏡要放置在木星那樣遙遠(yuǎn)的行星上才有可能在外層空間搜尋生命。因?yàn)槲覀冊绞墙咏栂档倪吘墸瑝m埃就越稀薄。