Fewer than 20 finished works are generally attributed to da Vinci.

一般只有不到二十幅完成作品被公认为是达·芬奇的作品。

What happened to da house set? Da White House set?

大房子布景怎么回事 白宫布景？

11. This book drew a lot of attention to da Vinci and significantly increased the Mona Lisa's fame.

这本书很关注达芬奇，很大地提升了蒙娜莉萨的知名度。

Much work has already been done but there is still much to da Protecting the environment is a moral and political imperative.

很多工作已经完成但我们还有很多工作要做。保护环境是道德和政治责任。