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在常用词triangle (三角形)中有个前缀tri-,它来自拉丁形容词tres,或tria,意思是three (三)。也可以说它来自希腊形容词treis或tris。因为它们在印欧语中是共源的。所以,tri-可以作为原生前缀跟拉丁词极与希腊词根相缀合。此外,tri-还可以充当派生前缀与名词、形容词结合。这时,它还有having three (三…的)的意思。
下面举几个常用词说明tri-的用法。
triangle [ tri- = three 三; angle n. 角→]n. a plane figure having three sides and three angles三角(形)/ An isosceles triangle has two equal sides. 等腰三角形有两边相等。
triangular a. 三角(形)的
triangulate v. 使成三角形
tricolour [ tri- = having three 有三…的;colour n. 颜色→]I a. having three colours 有三色的 / The flag is tricolour.那面旗是三色的。II n. the national flag of Fance 三色旗(法国国旗)/ The French tricolour consists of equal vertical strips of blue, white and red. 法国的三色旗由三条宽度相等的蓝、白、红竖条组成的。
tricycle [ tri- = three 三; cycl = circle 圆圈;-e→“three circles or wheels 三个轮子 ”→]n. a vehicle having three wheels 三轮车;三轮摩托车/ Children often ride tricycles. 小孩子常骑三轮车。
tricyclist n. 骑三轮车或三轮摩托的人
trident [ tri- = three三 ; dent = tooth 齿→]n. a spear with three prongs 二叉戟 / The young man used a trident for fishing. 那青年用三叉戟捕鱼。
trilogy [ tri- = three 三; logy = story 故事→]n. a group of three novels, plays or operas which form a related series (小说、戏剧等)三部曲 / This trilogy was first performed during the Dionysus in ancient Athens. 这三部曲最早是在古雅典的酒神节期间上演的。
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