多个实例证明，很多昆虫种类处在数量下降甚至绝灭的状态。

There is empirical evidence that many species of insects are declining, even going extinct.

youdao

主要运用比较定理得到了种群一致持续生存、弱持续生存以及绝灭的判据。

Sufficient criteria on uniform persistence, weak persistence and extinction of the consumer population are obtained by using mainly the comparison theorem.

youdao

这也许是一切之中最大的悲剧，因为物质层变得如此破坏性而进入了绝灭的模式。

This perhaps is the greatest travesty of all, as the physical became so destructive that it went into extinction patterning.

youdao