namely 6 million million miles.) Radio waves also travel at the speed of light,
即6萬億英里）。無線電波也是以光速傳播的。
新概念英語第四冊
Lesson 43 Are there strangers in space
?? 句中詞匯解析
從本句中提取的重要詞匯
n. 無線電;收音機(jī);無線電廣播臺;無線電收發(fā)報(bào)機(jī);
vt.& vi. 用無線電發(fā)送訊息;作無線電廣播;用X射線拍照;
?? radi 表”射線,輻射,廣播”
"The President gave an address to the nation over the radio."
總統(tǒng)向全國發(fā)表廣播演說.
近義：transmit, radiophonics, radiotelephony
adv. 即，也就是;換句話說;亦即;就是說;
?? 名字(name) 也就是來源(ly)
"We need to concentrate on our target audience, namely women aged between 20 and 30."
我們須針對我們的聽眾對象，即年齡在20到30歲之間的婦女。
近義：i.e., particularly, peculiarly, scilicet, ss, videlicet
n. 旅行;進(jìn)行;移動;漫游;
vi. 旅行;傳送;前進(jìn)，行進(jìn);[籃球]走步;
vt. 經(jīng)過，通過;游歷;
"The agency will make travel arrangements for you. Alternatively, you can organize your own transport."
旅行社將為你安排旅行，或者你也可以自己安排交通工具。
近義：jaunt, journey, junket, tour, trip, fare
反義：fester
n. 速度;快速;昌盛;（汽車的）變速器，排擋;
vt.& vi. 急行，加速;
vi. 超速;加速;迅速前行;興隆;
vt. 加快…的速度;使成功，使繁榮;
"Watch out for sharp bends and adjust your speed accordingly."
當(dāng)心急轉(zhuǎn)彎并相應(yīng)調(diào)整車速。
近義：accelerate, budge, advance, hasten, pelt, race
反義：slow, brake, heaviness, impassivity, lateness, listlessness
n. 光;發(fā)光體;電燈;點(diǎn)火器;
adj. 輕的;明亮的;淺色的;少量的;
v. 點(diǎn)燃;照亮;用光指引;
adv. 輕地，輕裝地;
?? 房間光線（light）明暗度正好（right）
"The office was light and airy."
辦公室又明亮又通風(fēng)。
近義：illuminate, illumine, lighten, brighten, ignite, incandescence
反義：quench, douse, extinguish, murk, murkiness, obscurity