4周搞定2000+托福核心词
principality = prin(主要) + cip(握住) + ality(表名词) = 公国
principally = prin(主要) + cip(握住) + al(...的) + ly(表副词) = 主要地
anticipate = ante(前面，先) + cip(握住) + ate(表动词) = 向前抓住,先抓住→预料
anticipation = anti(反抗) + cip(握住) + ate(使) + ion(表名词) = 向前抓住→预料
aborigal = ab(表加强) + orig(开始) + al(...的) = 起源而来→原始的
additional = add(加上) + ition(表名词) + al(...的) = 加上的→附加的
握住主要的→主要的
principal
常考释义
The principal insect enemies of the North American morning glory feed mainly on its flowers or fruits rather than its leaves.
北美牵牛花的头号天敌昆虫主要吸食牵牛花的花朵和果实而不是叶子。
来源于：阅读OFFICIAL34 P3adj. 主要的
The principal reason for my change of mind is this.
这是我改变主意的最主要原因。
Deforestation is one ofthe principal causes of global warming.
森林砍伐是全球变暖的主要原因之一。
来自《家园》
图片源自网络
The principal seagoing ship used throughout the Middle Ages was the galley, a long, low ship fitted with sails but driven primarily by oars.
中世纪应用最为广泛的海船是划桨帆船，船体低矮狭长能够使用帆，但主要还是靠浆操控。
来源于：阅读OFFICIAL17 P1The principal insect enemies of the North American morning glory feed mainly on its flowers or fruits rather than its leaves.
北美牵牛花的头号天敌昆虫主要吸食牵牛花的花朵和果实而不是叶子。
来源于：阅读OFFICIAL34 P3Cleisthenes' principal contribution to the creation of democracy at Athens was to complete the long process of weakening family and clan structures, especially among the aristocrats, and to set in their place locality-based corporations called demes, which became the point of entry for all civic and most religious life in Athens.
克利斯提尼对于创造雅典民主的主要贡献，是他完成了弱化家族和宗族结构（尤其是贵族家族和宗族结构）的漫长历程，并且在他们所在地方设置基于位置的团体——称为群落，这成为了雅典所有公民和大多数宗教生活的切入点。
来源于：阅读OFFICIAL40 P1The principal elements in behavioral thermoregulation are basking (heliothermy), heat exchange with substrates such as rock or earth (thigmothermy), and diurnal and annual avoidance behaviors, which include moving to shelter during the day for cooling and hibernating or estivating (reducing activity during cold or hot weather, respectively).
行为温度调节主要包括晒太阳（日光浴），与岩石或土壤之类的基质的热交换（接触热源），以及每天或每年的躲避行为，这包括转移到遮蔽处去乘凉、冬眠或夏眠（分别在寒冷或炙热的天气减少活动）。
来源于：阅读OFFICIAL40 P3In the ocean, microscopic phytoplankton (tiny floating plants) and bacteria (simple, single-celled organisms) are the principal sources of organic matter that is trapped and buried in sediment.
在海洋中，微小的浮游植物（微小的漂浮植物）和细菌（简单的单细胞生物）是被留在或是埋在沉积物中的有机物的主要来源。
来源于：阅读OFFICIAL43 P2The principal changes for the earliest tetrapods were in the skeletal system—changes in the bones of the fins, the vertebral column, pelvic girdle, and pectoral girdle.
最早期的四足动物主要进化的是骨骼系统，即鳍骨、脊柱、骨盆、肩胛骨发生变化。
来源于：阅读OFFICIAL44 P1n. 首长；校长
Donald King is the principal of Dartmouth High School.
唐纳德·金是达特茅斯中学的校长。
We again did a food service director survey and a principal survey.
我们又调查了食品行业主管和校长。
来自《有关食物的心理学、生物学和政治学第20集》
图片源自网络
n. 本金【finance】
The interest on a loan may not be deducted from the principal in advance.
借款的利息不得预先在本金中扣除。
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