这些恐怖的三脚植物会用它们致命的刺攻击任何靠近的生物。

The terrifying ___triffids would attack any creature that came near with their deadly stingers.

这些外来入侵植物像科幻小说中的三脚妖一样，正在迅速占领整个生态系统。

The invasive plants are spreading like ___triffids, rapidly taking over the entire ecosystem.