Definition
to begin a knitting project by creating initial loops of yarn.
（编织）起针
Before starting to knit the scarf, I need to cast on. It's called casting on.
在开始编织围巾之前，我需要起针。这叫做起针。
She taught me how to cast on when starting a knitting project.
她教我在开始编织项目时如何起针。
I always enjoy using different casting on techniques for new projects.
我总喜欢在新项目中使用不同的起针技巧。