Definition
to begin a knitting project by creating initial loops of yarn.
（編織）起針
Before starting to knit the scarf, I need to cast on. It's called casting on.
在開始編織圍巾之前，我需要起針。這叫做起針。
She taught me how to cast on when starting a knitting project.
她教我在開始編織項目時如何起針。
I always enjoy using different casting on techniques for new projects.
我總喜歡在新項目中使用不同的起針技巧。