?? 詞語組成解析
a. 無線電報的, 用無線電報的
signal
['s?gnl]
n. 信號，暗號;預(yù)兆，征象;動機;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
The wedding banquet was prepared beautifully.
婚禮宴會準備的很好。
I was born in a little town not far from here.
我出生在離這兒不遠的小城市里。
Mars is too dry and poor in oxygen, Venus far too hot, and so is Mercury,
火星太干燥又缺氧，金星太熱，水星也一樣。