special D.C machine

例句：

1. 1. This special sauce is the secret ingredient in our dish.
   这道特别的酱料是我们菜肴的秘密成分。
2. 2. The special needs of a child with autism are well-documented.
   自闭症儿童的特殊需求已被充分记录。
3. 3. The museum has a special exhibit on the history of space exploration.
   博物馆有一个关于太空探索历史的特别展览。