Yeah, that one was alright and then I had another one again, another double root canal while I was doing the pirate film.

对，那一次没问题，但我后来在拍摄“海盗”的时候又要给两颗牙做牙根管填充手术。

youdao

The root canal systems were comparatively complex, but most of them were most of double three canals.

根管系统虽较为复杂，但主要是双根管和三根管型。

youdao