(A light year is the distance which light travels at 186,000 miles per second in one year,
一光年是光以每秒186，000英里的速度在一年內走的距離，
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. 距離，路程;遠處;疏遠;（時間的）間隔，長久;
vt. 把…遠遠甩在后面;疏遠;與…保持距離;
?? dist距離 + ance 表名詞，狀態、情況、性質、行為 → n.距離,間距;遠處
"A peal of church bells rang out in the distance."
遠處響起了一陣教堂的鐘聲。
近義：isolation, separation, estrangement, aloofness, distantial, separate
反義：approximate, abut, immediacy, nearness, neighborhood, neighbourhood
n. 秒;瞬間;次貨;第二份食物;
adj. 第二的;次要的;居第二位的;另外的;
adv. 第二;其次;以第二位;
vt. 支持;臨時調派;附議;贊成提案;
?? sec跟隨+ond=one第一→跟隨第一個之后→第二；秒
"She was in the second year of her apprenticeship as a carpenter."
她當木工學徒已是第二年了。
近義：back, backstop, reinforce, support, advocate, endorse
反義：oppose, confront, contradict, counter, fence
n. 光;發光體;電燈;點火器;
adj. 輕的;明亮的;淺色的;少量的;
v. 點燃;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。
近義：illuminate, illumine, lighten, brighten, ignite, incandescence
反義：quench, douse, extinguish, murk, murkiness, obscurity
n. 年;年紀;一年的期間;某年級的學生;
"The students return in October for the start of the new academic year."
學生于十月返校，開始新學年的學習。
近義：twelvemonth, annum