英语语法分析

A few hardy species wiped out many of the Mediterranean invertebrates.

少数顽强的物种消灭了许多地中海无脊椎动物。

Indeed, unaltered shells of marine invertebrates are known from deposits over 100 million years old.

事实上，海洋无脊椎动物不变的外壳是通过1亿年前的沉积物发现的。

Insects and even small invertebrates have been found preserved in the hardened resins of conifers and certain other trees.

人们在针叶树和某些其它树木的硬化树脂中发现了昆虫，甚至发现了小型无脊椎动物。