我在花园里发现了一只千足虫，它有很多对腿。

I found a ___millipede in the garden, and it had many pairs of legs.

堵车时，我们的车队像千足虫一样缓慢爬行，前方车辆望不到尽头。

During the traffic jam, our convoy moved like a ___millipede, crawling slowly with endless vehicles.