1. It was the most wretched misery, dragged from among the filthiest rags. 这是穿着褴褛衣服的，穷苦的化身。
2. Coal is the filthiest fossil fuel and is cheap only because its dirtiness isn't included in the bill. 煤炭是污染最严重的化石燃料且因为它对环境的负外部性使其价格便宜。
3. While this might not be considered the filthiest habit by some, it should be considered the deadliest. 虽然吸烟对有些人来说不是最肮脏的习惯，但应该是最致命的。
4. Don't even begin to imagine what horrors you can possibly catch from what is thought of as the filthiest part of the restroom. 甚至不开始想象你能抓住恐怖是员工认为部分洗手间。
