Our new product line has been very successful. We've expanded the factory twice this year already.
我们新的生产线非常成功,我们今年已把工厂扩展了两倍。
Apparently what happened was that water collected on these tar pits, and the bigger animals like the elephants ventured out on to the apparently firm surface to drink, and were promptly bogged in the tar.
沥青坑里积存了水,大象那样的大动物冒险到似乎坚固的水面上去饮水,立即掉进了沥青坑。