我在花园里发现了一只蜈蚣，它有好多条腿。

I found a ___centipede in the garden with many pairs of legs.

谣言像蜈蚣一样在社区里迅速蔓延，不到一天就人尽皆知。

The rumor spread through the neighborhood like a ___centipede, becoming known to everyone within a day.