She always referred to them as 'the shifting population', for they came and went with such frequency that I never even got a chance to learn their names.
她稱這些傭人叫“流動人口”,因為他們來匆匆,所以我甚至都沒有機會知道他們的姓名。
新概念英語第三冊 Lesson 49 The ideal servant

?? 句中詞匯解析

從本句中提取的重要詞匯

population [,pɑpju'le??n] 詞頻1 詞根: popul
n. 人口;全體居民;特定[生物]種群;[物]布居;
?? popul人民+ation表示行為、狀態(tài)→ 全體居民,人口
"A census of population is taken every ten years."
人口普查每10年進(jìn)行一次.
近義:people, demographic, demographical
frequency ['frikw?nsi] 詞頻5 詞根: frequen
n. 頻繁性;[數(shù)][物]頻率,次數(shù);頻率分布;
?? fr + equ =equal,even,表示“相等,平均” + enc + y [形容詞后綴] → n.屢次;次數(shù);頻率
"Fatal road accidents have decreased in frequency over recent years."
近年來致命交通事故發(fā)生率已經(jīng)下降。
近義:assiduity, periodicity, regularity, chronicity 反義:uncommonness
chance [t??ns] 詞頻1
n. 機會,機遇;概率,可能性;偶然,運氣; v. 偶然發(fā)生;冒險;碰巧;偶然被發(fā)現(xiàn); adj. 意外的;偶然的;碰巧的;
?? 碰巧有 機會闡(chan)述我的計策(ce)
"I would do it if I had the chance."
如果我有機會的話,我也會那么做。
近義:hazard, imperil, jeopardise, jeopardize, risk, stake 反義:assurance, assuredness, obviousness, palpability, patency, positiveness
learn [l?n] 詞頻1
vt.& vi. 學(xué)習(xí),學(xué)會;習(xí)得;得知;記住; vt. 記住;學(xué)習(xí);得知;認(rèn)識到; vi. 學(xué)習(xí);獲知;
?? 學(xué)習(xí)好才能掙錢(earn)
"Children must learn socially acceptable behaviour."
兒童必須學(xué)會社會上認(rèn)可的行為舉止。
近義:know, acquire, develop, find, realize 反義:forget
came [k?m] 詞頻1
v. 來( come的過去式 );到達(dá);達(dá)到(認(rèn)識、理解或相信的程度);出生;
"The water came above our knees."
水淹過了我們的膝蓋。

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