这部电影的选角工作持续了两个月。

The ___casting process for this movie lasted two months.

这个铁门是用金属铸造工艺制作的。

The iron gate was made using metal ___casting technology.

他正在练习如何更准确地抛投鱼线。

He is practicing his ___casting technique to throw the fishing line more accurately.