4周搞定2000+托福核心词
inconspicous = in(不) + con(共同) + spic(看见) + ous(形容词) = 大家都不能一眼看见的→不显眼的
indifference = in(不) + dif(分开) + fer(带来) + ence(性质) = 不分开对待→冷漠
vertebral = vertebr(关节) + al(...的) = 脊椎的
vertebrate = vertebr(关节) + ate(形容词) = 有关节的动物的→脊椎动物的
accurate = ac(一再) + cur(照顾) + ate(形容词) = 一再照顾→精准的
adequate = ad(强化) + equ(相等) + ate(形容词) = 和需求量相等→足够的
没有关节的→无脊椎的
invertebrate
常考释义
One question was related to evidence that the invertebrate fauna (animals without spines) of the Mediterranean had changed abruptly about 6 million years ago.
其中一个问题是有关地中海地区无脊椎动物（没有脊椎的动物）于600万年前发生剧变的证据。
来源于：阅读OFFICIAL7 P1adj. 无脊椎的
Worms are an example of invertebrate animals.
蠕虫是无脊椎动物的一个例子.
Many copepods (small, herbivorous crustaceans) and invertebrate larvae pick out selected phytoplankton species from mixed groups, changing the species composition.
很多桡足动物（小的、甲克纲的食草动物）和无脊椎动物的幼体会从复杂的种群中挑出特定的浮游生物种类，这就改变了环境的状况。
来源于：阅读OFFICIAL35 P3One question was related to evidence that the invertebrate fauna (animals without spines) of the Mediterranean had changed abruptly about 6 million years ago.
其中一个问题是有关地中海地区无脊椎动物（没有脊椎的动物）于600万年前发生剧变的证据。
来源于：阅读OFFICIAL7 P1Increasing salinity caused by the evaporation resulted in the extermination of scores of invertebrate species.
由蒸发引起的越来越高的盐度造成无脊椎动物种类的灭绝。
来源于：阅读OFFICIAL7 P1n. 无脊椎动物
Half of all invertebrate species live in tropical rain forests
一半的无脊椎动物物种生活在热带雨林中.
Both of these conditions are often found on the ocean floors, where shelled invertebrates (organisms without spines) flourish and are covered by the continuous rain of sedimentary particles.
海底通常就具有上述的两方面条件，这里生活着很多带壳的无脊椎动物（没有脊椎的动物），不断累积的似雨的沉积颗粒会把它们掩埋起来。
来源于：阅读OFFICIAL20 P3Indeed, unaltered shells of marine invertebrates are known from deposits over 100 million years old.
事实上，我们现在所知的在沉积物中发现的海洋无脊椎动物保存良好的壳已超过了1亿年之久。
来源于：阅读OFFICIAL20 P3Insects and even small invertebrates have been found preserved in the hardened resins of conifers and certain other trees.
在针叶树以及某些其它的树种的凝固树脂中就发现了昆虫甚至是很小的无脊椎动物。
来源于：阅读OFFICIAL20 P3adj. 无骨气的; 意志弱的
They disliked him only because he was invertebrate.
他们不喜欢他就是认为他意志较弱.
n. 无骨气的人
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